210112211111100 has 72 divisors (see below), whose sum is σ = 639920699120640. Its totient is φ = 53080979647680.

The previous prime is 210112211111051. The next prime is 210112211111137. The reversal of 210112211111100 is 1111112211012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210112211111100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18430890012 + ... + 18430901411.

Almost surely, 2^{210112211111100} is an apocalyptic number.

210112211111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112211111100 is an abundant number, since it is smaller than the sum of its proper divisors (429808488009540).

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

210112211111100 is a wasteful number, since it uses less digits than its factorization.

210112211111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36861791459 (or 36861791452 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 210112211111100 its reverse (1111112211012), we get a palindrome (211223323322112).

The spelling of 210112211111100 in words is "two hundred ten trillion, one hundred twelve billion, two hundred eleven million, one hundred eleven thousand, one hundred".