223031443212 has 18 divisors (see below), whose sum is σ = 563773925988. Its totient is φ = 74343814392.

The previous prime is 223031443183. The next prime is 223031443249. The reversal of 223031443212 is 212344130322.

223031443212 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 3 + 1 + 443 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×223031443212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3097658898 + ... + 3097658969.

It is an arithmetic number, because the mean of its divisors is an integer number (31320773666).

Almost surely, 2^223031443212 is an apocalyptic number.

It is an amenable number.

223031443212 is an abundant number, since it is smaller than the sum of its proper divisors (340742482776).

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

223031443212 is a wasteful number, since it uses less digits than its factorization.

223031443212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195317877 (or 6195317872 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223031443212 its reverse (212344130322), we get a palindrome (435375573534).

The spelling of 223031443212 in words is "two hundred twenty-three billion, thirty-one million, four hundred forty-three thousand, two hundred twelve".