223021132312 has 64 divisors (see below), whose sum is σ = 485682855840. Its totient is φ = 94882867200.

The previous prime is 223021132309. The next prime is 223021132331. The reversal of 223021132312 is 213231120322.

It is a super-2 number, since 2×223021132312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141043 + ... + 682594.

Almost surely, 2^223021132312 is an apocalyptic number.

223021132312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223021132312 is an abundant number, since it is smaller than the sum of its proper divisors (262661723528).

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

223021132312 is a wasteful number, since it uses less digits than its factorization.

223021132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823852 (or 823848 counting only the distinct ones).

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

Adding to 223021132312 its reverse (213231120322), we get a palindrome (436252252634).

The spelling of 223021132312 in words is "two hundred twenty-three billion, twenty-one million, one hundred thirty-two thousand, three hundred twelve".