23013012222 has 28 divisors (see below), whose sum is σ = 51755604840. Its totient is φ = 7671003588.

The previous prime is 23013012199. The next prime is 23013012241. The reversal of 23013012222 is 22221031032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23013012195 and 23013012204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7890522 + ... + 7893437.

Almost surely, 2^23013012222 is an apocalyptic number.

23013012222 is an abundant number, since it is smaller than the sum of its proper divisors (28742592618).

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

23013012222 is an equidigital number, since it uses as much as digits as its factorization.

23013012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15783979 (or 15783964 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23013012222 its reverse (22221031032), we get a palindrome (45234043254).

The spelling of 23013012222 in words is "twenty-three billion, thirteen million, twelve thousand, two hundred twenty-two".