210222111312 has 60 divisors (see below), whose sum is σ = 619294678080. Its totient is φ = 66385929024.

The previous prime is 210222111289. The next prime is 210222111383. The reversal of 210222111312 is 213111222012.

210222111312 is a `hidden beast` number, since 21 + 0 + 222 + 111 + 312 = 666.

It is a super-2 number, since 2×210222111312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 38415048 + ... + 38420519.

It is an arithmetic number, because the mean of its divisors is an integer number (10321577968).

Almost surely, 2^210222111312 is an apocalyptic number.

It is an amenable number.

210222111312 is an abundant number, since it is smaller than the sum of its proper divisors (409072566768).

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

210222111312 is a wasteful number, since it uses less digits than its factorization.

210222111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76835600 (or 76835591 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 210222111312 its reverse (213111222012), we get a palindrome (423333333324).

The spelling of 210222111312 in words is "two hundred ten billion, two hundred twenty-two million, one hundred eleven thousand, three hundred twelve".