100221012002020 has 96 divisors (see below), whose sum is σ = 259192575242496. Its totient is φ = 31698730252800.

The previous prime is 100221012001909. The next prime is 100221012002053. The reversal of 100221012002020 is 20200210122001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 14035126 + ... + 19935565.

It is an arithmetic number, because the mean of its divisors is an integer number (2699922658776).

Almost surely, 2^{100221012002020} is an apocalyptic number.

100221012002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221012002020 is an abundant number, since it is smaller than the sum of its proper divisors (158971563240476).

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

100221012002020 is a wasteful number, since it uses less digits than its factorization.

100221012002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33972341 (or 33972339 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100221012002020 its reverse (20200210122001), we get a palindrome (120421222124021).

The spelling of 100221012002020 in words is "one hundred trillion, two hundred twenty-one billion, twelve million, two thousand, twenty".