23220402210 has 24 divisors (see below), whose sum is σ = 60373045980. Its totient is φ = 6192107232.

The previous prime is 23220402209. The next prime is 23220402229. The reversal of 23220402210 is 1220402232.

23220402210 is a `hidden beast` number, since 2 + 32 + 20 + 402 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21211300881 + 2009101329 = 145641^2 + 44823^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129002145 + ... + 129002324.

Almost surely, 2^23220402210 is an apocalyptic number.

23220402210 is an abundant number, since it is smaller than the sum of its proper divisors (37152643770).

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

23220402210 is a wasteful number, since it uses less digits than its factorization.

23220402210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258004482 (or 258004479 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23220402210 its reverse (1220402232), we get a palindrome (24440804442).

The spelling of 23220402210 in words is "twenty-three billion, two hundred twenty million, four hundred two thousand, two hundred ten".