210101221204 has 48 divisors (see below), whose sum is σ = 422266255488. Its totient is φ = 89602126848.

The previous prime is 210101221201. The next prime is 210101221207. The reversal of 210101221204 is 402122101012.

It is an interprime number because it is at equal distance from previous prime (210101221201) and next prime (210101221207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101221201) 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 15 ways as a sum of consecutive naturals, for example, 5176839 + ... + 5217265.

It is an arithmetic number, because the mean of its divisors is an integer number (8797213656).

Almost surely, 2^210101221204 is an apocalyptic number.

It is an amenable number.

210101221204 is an abundant number, since it is smaller than the sum of its proper divisors (212165034284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210101221204 is a wasteful number, since it uses less digits than its factorization.

210101221204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41344 (or 41342 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210101221204 its reverse (402122101012), we get a palindrome (612223322216).

The spelling of 210101221204 in words is "two hundred ten billion, one hundred one million, two hundred twenty-one thousand, two hundred four".