222031312120030 has 128 divisors (see below), whose sum is σ = 478477461934080. Its totient is φ = 72576043545600.

The previous prime is 222031312120021. The next prime is 222031312120031. The reversal of 222031312120030 is 30021213130222.

It is a junction number, because it is equal to n+sod(n) for n = 222031312119983 and 222031312120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222031312120031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49021834 + ... + 53359186.

It is an arithmetic number, because the mean of its divisors is an integer number (3738105171360).

Almost surely, 2^{222031312120030} is an apocalyptic number.

222031312120030 is an abundant number, since it is smaller than the sum of its proper divisors (256446149814050).

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

222031312120030 is a wasteful number, since it uses less digits than its factorization.

222031312120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337714.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 222031312120030 its reverse (30021213130222), we get a palindrome (252052525250252).

The spelling of 222031312120030 in words is "two hundred twenty-two trillion, thirty-one billion, three hundred twelve million, one hundred twenty thousand, thirty".