222131211312 has 80 divisors (see below), whose sum is σ = 579023511552. Its totient is φ = 73376110080.

The previous prime is 222131211307. The next prime is 222131211317. The reversal of 222131211312 is 213112131222.

It is an interprime number because it is at equal distance from previous prime (222131211307) and next prime (222131211317).

It is a super-2 number, since 2×222131211312² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222131211317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5386612 + ... + 5427692.

Almost surely, 2^222131211312 is an apocalyptic number.

It is an amenable number.

222131211312 is an abundant number, since it is smaller than the sum of its proper divisors (356892300240).

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

222131211312 is a wasteful number, since it uses less digits than its factorization.

222131211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42106 (or 42100 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 222131211312 its reverse (213112131222), we get a palindrome (435243342534).

The spelling of 222131211312 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred eleven thousand, three hundred twelve".