222311344212 has 36 divisors (see below), whose sum is σ = 561967995316. Its totient is φ = 74101893120.

The previous prime is 222311344207. The next prime is 222311344219. The reversal of 222311344212 is 212443113222.

222311344212 is a `hidden beast` number, since 2 + 2 + 2 + 311 + 344 + 2 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85911127236 + 136400216976 = 293106^2 + 369324^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222311344219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2651412 + ... + 2733972.

Almost surely, 2^222311344212 is an apocalyptic number.

It is an amenable number.

222311344212 is an abundant number, since it is smaller than the sum of its proper divisors (339656651104).

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

222311344212 is a wasteful number, since it uses less digits than its factorization.

222311344212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157368 (or 157363 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 222311344212 its reverse (212443113222), we get a palindrome (434754457434).

The spelling of 222311344212 in words is "two hundred twenty-two billion, three hundred eleven million, three hundred forty-four thousand, two hundred twelve".