101122000020 has 48 divisors (see below), whose sum is σ = 314601779520. Its totient is φ = 26965866528.

The previous prime is 101121999971. The next prime is 101122000097. The reversal of 101122000020 is 20000221101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101121999966 and 101122000011.

It is a congruent number.

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, 93630942 + ... + 93632021.

It is an arithmetic number, because the mean of its divisors is an integer number (6554203740).

Almost surely, 2^101122000020 is an apocalyptic number.

101122000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122000020 is an abundant number, since it is smaller than the sum of its proper divisors (213479779500).

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

101122000020 is a wasteful number, since it uses less digits than its factorization.

101122000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187262981 (or 187262973 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 101122000020 its reverse (20000221101), we get a palindrome (121122221121).

The spelling of 101122000020 in words is "one hundred one billion, one hundred twenty-two million, twenty", and thus it is an aban number.