100020211210020 has 24 divisors (see below), whose sum is σ = 280056591388224. Its totient is φ = 26672056322656.

The previous prime is 100020211209949. The next prime is 100020211210057. The reversal of 100020211210020 is 20012112020001.

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 = 100020211209978 and 100020211210005.

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, 833501760024 + ... + 833501760143.

It is an arithmetic number, because the mean of its divisors is an integer number (11669024641176).

Almost surely, 2^{100020211210020} is an apocalyptic number.

100020211210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020211210020 is an abundant number, since it is smaller than the sum of its proper divisors (180036380178204).

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

100020211210020 is a wasteful number, since it uses less digits than its factorization.

100020211210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667003520179 (or 1667003520177 counting only the distinct ones).

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

Adding to 100020211210020 its reverse (20012112020001), we get a palindrome (120032323230021).

The spelling of 100020211210020 in words is "one hundred trillion, twenty billion, two hundred eleven million, two hundred ten thousand, twenty".