55020222120 has 64 divisors (see below), whose sum is σ = 166575024000. Its totient is φ = 14537449728.

The previous prime is 55020222119. The next prime is 55020222209. The reversal of 55020222120 is 2122202055.

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, 2090140 + ... + 2116299.

It is an arithmetic number, because the mean of its divisors is an integer number (2602734750).

Almost surely, 2^55020222120 is an apocalyptic number.

It is an amenable number.

55020222120 is an abundant number, since it is smaller than the sum of its proper divisors (111554801880).

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

55020222120 is a wasteful number, since it uses less digits than its factorization.

55020222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206562 (or 4206558 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 55020222120 its reverse (2122202055), we get a palindrome (57142424175).

It can be divided in two parts, 55020 and 222120, that added together give a triangular number (277140 = T₇₄₄).

The spelling of 55020222120 in words is "fifty-five billion, twenty million, two hundred twenty-two thousand, one hundred twenty".