220042551220 has 48 divisors (see below), whose sum is σ = 478123511040. Its totient is φ = 84964166784.

The previous prime is 220042551199. The next prime is 220042551227. The reversal of 220042551220 is 22155240022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220042551227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2924917 + ... + 2999203.

It is an arithmetic number, because the mean of its divisors is an integer number (9960906480).

Almost surely, 2^220042551220 is an apocalyptic number.

220042551220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220042551220 is an abundant number, since it is smaller than the sum of its proper divisors (258080959820).

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

220042551220 is a wasteful number, since it uses less digits than its factorization.

220042551220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79432 (or 79430 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 220042551220 its reverse (22155240022), we get a palindrome (242197791242).

The spelling of 220042551220 in words is "two hundred twenty billion, forty-two million, five hundred fifty-one thousand, two hundred twenty".