222123211320 has 128 divisors (see below), whose sum is σ = 700649352000. Its totient is φ = 56252743680.

The previous prime is 222123211319. The next prime is 222123211339. The reversal of 222123211320 is 23112321222.

It is a super-2 number, since 2×222123211320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310905 + ... + 735464.

Almost surely, 2^222123211320 is an apocalyptic number.

222123211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222123211320 is an abundant number, since it is smaller than the sum of its proper divisors (478526140680).

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

222123211320 is a wasteful number, since it uses less digits than its factorization.

222123211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046473 (or 1046469 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 222123211320 its reverse (23112321222), we get a palindrome (245235532542).

The spelling of 222123211320 in words is "two hundred twenty-two billion, one hundred twenty-three million, two hundred eleven thousand, three hundred twenty".