222123131320 has 32 divisors (see below), whose sum is σ = 500515329600. Its totient is φ = 88718002048.

The previous prime is 222123131287. The next prime is 222123131381. The reversal of 222123131320 is 23131321222.

It is a junction number, because it is equal to n+sod(n) for n = 222123131291 and 222123131300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4074160 + ... + 4128319.

It is an arithmetic number, because the mean of its divisors is an integer number (15641104050).

Almost surely, 2^222123131320 is an apocalyptic number.

222123131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222123131320 is an abundant number, since it is smaller than the sum of its proper divisors (278392198280).

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

222123131320 is a wasteful number, since it uses less digits than its factorization.

222123131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203167 (or 8203163 counting only the distinct ones).

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

Adding to 222123131320 its reverse (23131321222), we get a palindrome (245254452542).

The spelling of 222123131320 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, three hundred twenty".