101102122020 has 48 divisors (see below), whose sum is σ = 289669343040. Its totient is φ = 26333575296.

The previous prime is 101102121983. The next prime is 101102122073. The reversal of 101102122020 is 20221201101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101102121987 and 101102122005.

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, 19590855 + ... + 19596014.

It is an arithmetic number, because the mean of its divisors is an integer number (6034777980).

Almost surely, 2^101102122020 is an apocalyptic number.

101102122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101102122020 is an abundant number, since it is smaller than the sum of its proper divisors (188567221020).

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

101102122020 is a wasteful number, since it uses less digits than its factorization.

101102122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39186924 (or 39186922 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101102122020 its reverse (20221201101), we get a palindrome (121323323121).

The spelling of 101102122020 in words is "one hundred one billion, one hundred two million, one hundred twenty-two thousand, twenty".