223312442120 has 16 divisors (see below), whose sum is σ = 502452994860. Its totient is φ = 89324976832.

The previous prime is 223312441997. The next prime is 223312442137. The reversal of 223312442120 is 21244213322.

It can be written as a sum of positive squares in 2 ways, for example, as 188507062276 + 34805379844 = 434174^2 + 186562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 223312442120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791405487 + ... + 2791405566.

Almost surely, 2^223312442120 is an apocalyptic number.

223312442120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223312442120 is an abundant number, since it is smaller than the sum of its proper divisors (279140552740).

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

223312442120 is a wasteful number, since it uses less digits than its factorization.

223312442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582811064 (or 5582811060 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 223312442120 its reverse (21244213322), we get a palindrome (244556655442).

The spelling of 223312442120 in words is "two hundred twenty-three billion, three hundred twelve million, four hundred forty-two thousand, one hundred twenty".