101121112020 has 48 divisors (see below), whose sum is σ = 283163626368. Its totient is φ = 26963295360.

The previous prime is 101121111937. The next prime is 101121112031. The reversal of 101121112020 is 20211121101.

It is a super-2 number, since 2×101121112020² (a number of 23 digits) contains 22 as substring.

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 = 101121111987 and 101121112005.

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, 692190 + ... + 825450.

It is an arithmetic number, because the mean of its divisors is an integer number (5899242216).

Almost surely, 2^101121112020 is an apocalyptic number.

101121112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101121112020 is an abundant number, since it is smaller than the sum of its proper divisors (182042514348).

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

101121112020 is a wasteful number, since it uses less digits than its factorization.

101121112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145920 (or 145918 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101121112020 its reverse (20211121101), we get a palindrome (121332233121).

The spelling of 101121112020 in words is "one hundred one billion, one hundred twenty-one million, one hundred twelve thousand, twenty".