222131131222 has 128 divisors (see below), whose sum is σ = 468313767936. Its totient is φ = 76219920000.

The previous prime is 222131131153. The next prime is 222131131247.

222131131222 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 222131131193 and 222131131202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4381197 + ... + 4431607.

It is an arithmetic number, because the mean of its divisors is an integer number (3658701312).

Almost surely, 2^222131131222 is an apocalyptic number.

222131131222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222131131222 is an abundant number, since it is smaller than the sum of its proper divisors (246182636714).

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

222131131222 is a wasteful number, since it uses less digits than its factorization.

222131131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50546.

The product of its digits is 576, while the sum is 22.

Multiplying 222131131222 by its sum of digits (22), we get a palindrome (4886884886884).

It can be divided in two parts, 222131 and 131222, that added together give a palindrome (353353).

The spelling of 222131131222 in words is "two hundred twenty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-two".