220133121020 has 24 divisors (see below), whose sum is σ = 477191799168. Its totient is φ = 85212820800.

The previous prime is 220133121011. The next prime is 220133121031. The reversal of 220133121020 is 20121331022.

It is a self number, because there is not a number n which added to its sum of digits gives 220133121020.

It is a congruent number.

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, 177526091 + ... + 177527330.

It is an arithmetic number, because the mean of its divisors is an integer number (19882991632).

Almost surely, 2^220133121020 is an apocalyptic number.

220133121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220133121020 is an abundant number, since it is smaller than the sum of its proper divisors (257058678148).

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

220133121020 is a wasteful number, since it uses less digits than its factorization.

220133121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355053461 (or 355053459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220133121020 its reverse (20121331022), we get a palindrome (240254452042).

The spelling of 220133121020 in words is "two hundred twenty billion, one hundred thirty-three million, one hundred twenty-one thousand, twenty".