101122321020 has 96 divisors (see below), whose sum is σ = 327687628800. Its totient is φ = 22821087744.

The previous prime is 101122320989. The next prime is 101122321031. The reversal of 101122321020 is 20123221101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1490665 + ... + 1557024.

It is an arithmetic number, because the mean of its divisors is an integer number (3413412800).

Almost surely, 2^101122321020 is an apocalyptic number.

101122321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122321020 is an abundant number, since it is smaller than the sum of its proper divisors (226565307780).

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

101122321020 is a wasteful number, since it uses less digits than its factorization.

101122321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047787 (or 3047785 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 101122321020 its reverse (20123221101), we get a palindrome (121245542121).

The spelling of 101122321020 in words is "one hundred one billion, one hundred twenty-two million, three hundred twenty-one thousand, twenty".