212011111021100 has 36 divisors (see below), whose sum is σ = 464619201145008. Its totient is φ = 83964796440000.

The previous prime is 212011111021069. The next prime is 212011111021111. The reversal of 212011111021100 is 1120111110212.

It is a super-2 number, since 2×212011111021100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10495589456 + ... + 10495609655.

Almost surely, 2^{212011111021100} is an apocalyptic number.

212011111021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011111021100 is an abundant number, since it is smaller than the sum of its proper divisors (252608090123908).

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

212011111021100 is a wasteful number, since it uses less digits than its factorization.

212011111021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20991199226 (or 20991199219 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212011111021100 its reverse (1120111110212), we get a palindrome (213131222131312).

The spelling of 212011111021100 in words is "two hundred twelve trillion, eleven billion, one hundred eleven million, twenty-one thousand, one hundred".