213212112113110 has 128 divisors (see below), whose sum is σ = 451732723200000. Its totient is φ = 71583110277120.

The previous prime is 213212112113101. The next prime is 213212112113171. The reversal of 213212112113110 is 11311211212312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 653863891 + ... + 654189889.

It is an arithmetic number, because the mean of its divisors is an integer number (3529161900000).

Almost surely, 2^{213212112113110} is an apocalyptic number.

213212112113110 is an abundant number, since it is smaller than the sum of its proper divisors (238520611086890).

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

213212112113110 is a wasteful number, since it uses less digits than its factorization.

213212112113110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332686.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 213212112113110 its reverse (11311211212312), we get a palindrome (224523323325422).

The spelling of 213212112113110 in words is "two hundred thirteen trillion, two hundred twelve billion, one hundred twelve million, one hundred thirteen thousand, one hundred ten".