100212201 has 8 divisors (see below), whose sum is σ = 148462560. Its totient is φ = 66808116.

The previous prime is 100212163. The next prime is 100212223. The reversal of 100212201 is 102212001.

It is not a de Polignac number, because 100212201 - 2⁹ = 100211689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100212401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855755 + ... + 1855808.

It is an arithmetic number, because the mean of its divisors is an integer number (18557820).

Almost surely, 2^100212201 is an apocalyptic number.

It is an amenable number.

100212201 is a deficient number, since it is larger than the sum of its proper divisors (48250359).

100212201 is an equidigital number, since it uses as much as digits as its factorization.

100212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711572 (or 3711566 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 100212201 is about 10010.6044273061. The cubic root of 100212201 is about 464.4869680017.

Adding to 100212201 its reverse (102212001), we get a palindrome (202424202).

It can be divided in two parts, 1002 and 12201, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 100212201 in words is "one hundred million, two hundred twelve thousand, two hundred one".