210100211221012 has 24 divisors (see below), whose sum is σ = 420507811269504. Its totient is φ = 89977078631712.

The previous prime is 210100211220967. The next prime is 210100211221127. The reversal of 210100211221012 is 210122112001012.

It is a super-2 number, since 2×210100211221012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744504143 + ... + 2744580694.

It is an arithmetic number, because the mean of its divisors is an integer number (17521158802896).

Almost surely, 2^{210100211221012} is an apocalyptic number.

It is an amenable number.

210100211221012 is an abundant number, since it is smaller than the sum of its proper divisors (210407600048492).

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

210100211221012 is a wasteful number, since it uses less digits than its factorization.

210100211221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489086215 (or 5489086213 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210100211221012 its reverse (210122112001012), we get a palindrome (420222323222024).

The spelling of 210100211221012 in words is "two hundred ten trillion, one hundred billion, two hundred eleven million, two hundred twenty-one thousand, twelve".