100202112020 has 24 divisors (see below), whose sum is σ = 210430531584. Its totient is φ = 40079683616.

The previous prime is 100202111987. The next prime is 100202112071. The reversal of 100202112020 is 20211202001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100202111992 and 100202112010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086557 + ... + 1175163.

It is an arithmetic number, because the mean of its divisors is an integer number (8767938816).

Almost surely, 2^100202112020 is an apocalyptic number.

100202112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100202112020 is an abundant number, since it is smaller than the sum of its proper divisors (110228419564).

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

100202112020 is a wasteful number, since it uses less digits than its factorization.

100202112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145159 (or 145157 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100202112020 its reverse (20211202001), we get a palindrome (120413314021).

The spelling of 100202112020 in words is "one hundred billion, two hundred two million, one hundred twelve thousand, twenty".