211020112110120 has 64 divisors (see below), whose sum is σ = 633184152045120. Its totient is φ = 56261024054784.

The previous prime is 211020112110113. The next prime is 211020112110151. The reversal of 211020112110120 is 21011211020112.

It is a happy number.

It is a super-2 number, since 2×211020112110120² (a number of 29 digits) contains 22 as substring.

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 211020112110120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171350154 + ... + 172577273.

It is an arithmetic number, because the mean of its divisors is an integer number (9893502375705).

Almost surely, 2^{211020112110120} is an apocalyptic number.

211020112110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211020112110120 is an abundant number, since it is smaller than the sum of its proper divisors (422164039935000).

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

211020112110120 is a wasteful number, since it uses less digits than its factorization.

211020112110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343932554 (or 343932550 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211020112110120 its reverse (21011211020112), we get a palindrome (232031323130232).

The spelling of 211020112110120 in words is "two hundred eleven trillion, twenty billion, one hundred twelve million, one hundred ten thousand, one hundred twenty".