100001020221012 has 12 divisors (see below), whose sum is σ = 233335713849056. Its totient is φ = 33333673407000.

The previous prime is 100001020221007. The next prime is 100001020221169. The reversal of 100001020221012 is 210122020100001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8333418351751 = 100001020221012 / (1 + 0 + 0 + 0 + 0 + 1 + 0 + 2 + 0 + 2 + 2 + 1 + 0 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166709175864 + ... + 4166709175887.

Almost surely, 2^{100001020221012} is an apocalyptic number.

100001020221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100001020221012 is an abundant number, since it is smaller than the sum of its proper divisors (133334693628044).

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

100001020221012 is a wasteful number, since it uses less digits than its factorization.

100001020221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333418351758 (or 8333418351756 counting only the distinct ones).

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

Adding to 100001020221012 its reverse (210122020100001), we get a palindrome (310123040321013).

The spelling of 100001020221012 in words is "one hundred trillion, one billion, twenty million, two hundred twenty-one thousand, twelve".