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2102212201 = 10721193113
BaseRepresentation
bin111110101001101…
…0011011001101001
312102111200110000011
41331103103121221
513301131242301
6544333411521
7103044336355
oct17523233151
95374613004
102102212201
1198970a161
124a8039ba1
132766b3a5b
1415d2a4465
15c4852a51
hex7d4d3669

2102212201 has 8 divisors (see below), whose sum is σ = 2131938144. Its totient is φ = 2072673120.

The previous prime is 2102212187. The next prime is 2102212219. The reversal of 2102212201 is 1022122012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102212201 - 29 = 2102211689 is a prime.

It is a super-2 number, since 2×21022122012 = 8838592276066528802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102212241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23980 + ... + 69133.

It is an arithmetic number, because the mean of its divisors is an integer number (266492268).

Almost surely, 22102212201 is an apocalyptic number.

It is an amenable number.

2102212201 is a deficient number, since it is larger than the sum of its proper divisors (29725943).

2102212201 is a wasteful number, since it uses less digits than its factorization.

2102212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93431.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102212201 is about 45849.8876879759. The cubic root of 2102212201 is about 1281.0286736127.

Adding to 2102212201 its reverse (1022122012), we get a palindrome (3124334213).

It can be divided in two parts, 2 and 102212201, that multiplied together give a palindrome (204424402).

The spelling of 2102212201 in words is "two billion, one hundred two million, two hundred twelve thousand, two hundred one".

Divisors: 1 107 211 22577 93113 9963091 19646843 2102212201