211211120002110 has 64 divisors (see below), whose sum is σ = 509595519283200. Its totient is φ = 56024246664320.

The previous prime is 211211120002109. The next prime is 211211120002121. The reversal of 211211120002110 is 11200021112112.

It is a happy number.

It is a super-2 number, since 2×211211120002110² (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 211211120002110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82971424 + ... + 85479116.

It is an arithmetic number, because the mean of its divisors is an integer number (7962429988800).

Almost surely, 2^{211211120002110} is an apocalyptic number.

211211120002110 is an abundant number, since it is smaller than the sum of its proper divisors (298384399281090).

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

211211120002110 is a wasteful number, since it uses less digits than its factorization.

211211120002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522593.

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

Adding to 211211120002110 its reverse (11200021112112), we get a palindrome (222411141114222).

The spelling of 211211120002110 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred twenty million, two thousand, one hundred ten".