10055557220 has 24 divisors (see below), whose sum is σ = 22034787264. Its totient is φ = 3847343456.

The previous prime is 10055557217. The next prime is 10055557247. The reversal of 10055557220 is 2275555001.

It is a super-2 number, since 2×10055557220² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10929494 + ... + 10930413.

It is an arithmetic number, because the mean of its divisors is an integer number (918116136).

Almost surely, 2^10055557220 is an apocalyptic number.

10055557220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10055557220 is an abundant number, since it is smaller than the sum of its proper divisors (11979230044).

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

10055557220 is a wasteful number, since it uses less digits than its factorization.

10055557220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21859939 (or 21859937 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 32.

The spelling of 10055557220 in words is "ten billion, fifty-five million, five hundred fifty-seven thousand, two hundred twenty".