220123131210 has 24 divisors (see below), whose sum is σ = 572320141380. Its totient is φ = 58699501632.

The previous prime is 220123131203. The next prime is 220123131227. The reversal of 220123131210 is 12131321022.

220123131210 is a `hidden beast` number, since 220 + 1 + 231 + 3 + 1 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 201558796209 + 18564335001 = 448953^2 + 136251^2 .

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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1222906195 + ... + 1222906374.

Almost surely, 2^220123131210 is an apocalyptic number.

220123131210 is an abundant number, since it is smaller than the sum of its proper divisors (352197010170).

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

220123131210 is a wasteful number, since it uses less digits than its factorization.

220123131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445812582 (or 2445812579 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 220123131210 its reverse (12131321022), we get a palindrome (232254452232).

The spelling of 220123131210 in words is "two hundred twenty billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred ten".