1220101201 has 24 divisors (see below), whose sum is σ = 1371708800. Its totient is φ = 1084168800.

The previous prime is 1220101189. The next prime is 1220101241. The reversal of 1220101201 is 1021010221.

It is not a de Polignac number, because 1220101201 - 2⁷ = 1220101073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220101241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041346 + ... + 1042516.

Almost surely, 2^1220101201 is an apocalyptic number.

1220101201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220101201 is a deficient number, since it is larger than the sum of its proper divisors (151607599).

1220101201 is a wasteful number, since it uses less digits than its factorization.

1220101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1220101201 is about 34929.9470512052. The cubic root of 1220101201 is about 1068.5592747629.

Adding to 1220101201 its reverse (1021010221), we get a palindrome (2241111422).

The spelling of 1220101201 in words is "one billion, two hundred twenty million, one hundred one thousand, two hundred one".