223131220112 has 20 divisors (see below), whose sum is σ = 432842058240. Its totient is φ = 111430043808.

The previous prime is 223131220061. The next prime is 223131220139. The reversal of 223131220112 is 211022131322.

It is a super-3 number, since 3×223131220112³ (a number of 35 digits) contains 333 as substring.

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, 8459312 + ... + 8485647.

It is an arithmetic number, because the mean of its divisors is an integer number (21642102912).

Almost surely, 2^223131220112 is an apocalyptic number.

It is an amenable number.

223131220112 is a deficient number, since it is larger than the sum of its proper divisors (209710838128).

223131220112 is a wasteful number, since it uses less digits than its factorization.

223131220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16945790 (or 16945784 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 223131220112 its reverse (211022131322), we get a palindrome (434153351434).

The spelling of 223131220112 in words is "two hundred twenty-three billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twelve".