101000220020 has 36 divisors (see below), whose sum is σ = 246729111300. Its totient is φ = 34628646528.

The previous prime is 101000220011. The next prime is 101000220023. The reversal of 101000220020 is 20022000101.

It can be written as a sum of positive squares in 2 ways, for example, as 50157185764 + 50843034256 = 223958^2 + 225484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000220023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51529745 + ... + 51531704.

It is an arithmetic number, because the mean of its divisors is an integer number (6853586425).

Almost surely, 2^101000220020 is an apocalyptic number.

101000220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101000220020 is an abundant number, since it is smaller than the sum of its proper divisors (145728891280).

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

101000220020 is a wasteful number, since it uses less digits than its factorization.

101000220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103061472 (or 103061463 counting only the distinct ones).

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

Adding to 101000220020 its reverse (20022000101), we get a palindrome (121022220121).

The spelling of 101000220020 in words is "one hundred one billion, two hundred twenty thousand, twenty".