101122020220 has 24 divisors (see below), whose sum is σ = 228691338624. Its totient is φ = 37337361216.

The previous prime is 101122020187. The next prime is 101122020239. The reversal of 101122020220 is 22020221101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 101122020220.

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, 194465164 + ... + 194465683.

It is an arithmetic number, because the mean of its divisors is an integer number (9528805776).

Almost surely, 2^101122020220 is an apocalyptic number.

101122020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122020220 is an abundant number, since it is smaller than the sum of its proper divisors (127569318404).

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

101122020220 is a wasteful number, since it uses less digits than its factorization.

101122020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388930869 (or 388930867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101122020220 its reverse (22020221101), we get a palindrome (123142241321).

The spelling of 101122020220 in words is "one hundred one billion, one hundred twenty-two million, twenty thousand, two hundred twenty".