211120002121110 has 32 divisors (see below), whose sum is σ = 509616837502560. Its totient is φ = 55973241408768.

The previous prime is 211120002121103. The next prime is 211120002121169. The reversal of 211120002121110 is 11121200021112.

It is a happy number.

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 211120002121110.

It is a congruent number.

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, 20339108695 + ... + 20339119074.

It is an arithmetic number, because the mean of its divisors is an integer number (15925526171955).

Almost surely, 2^{211120002121110} is an apocalyptic number.

211120002121110 is an abundant number, since it is smaller than the sum of its proper divisors (298496835381450).

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

211120002121110 is a wasteful number, since it uses less digits than its factorization.

211120002121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40678227952.

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

Adding to 211120002121110 its reverse (11121200021112), we get a palindrome (222241202142222).

The spelling of 211120002121110 in words is "two hundred eleven trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, one hundred ten".