100212122211020 has 24 divisors (see below), whose sum is σ = 210473408275200. Its totient is φ = 40079524764032.

The previous prime is 100212122210957. The next prime is 100212122211067. The reversal of 100212122211020 is 20112221212001.

It is a self number, because there is not a number n which added to its sum of digits gives 100212122211020.

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, 332603180 + ... + 332904339.

It is an arithmetic number, because the mean of its divisors is an integer number (8769725344800).

Almost surely, 2^{100212122211020} is an apocalyptic number.

100212122211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212122211020 is an abundant number, since it is smaller than the sum of its proper divisors (110261286064180).

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

100212122211020 is a wasteful number, since it uses less digits than its factorization.

100212122211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665515057 (or 665515055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100212122211020 its reverse (20112221212001), we get a palindrome (120324343423021).

The spelling of 100212122211020 in words is "one hundred trillion, two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, twenty".