100221120120212 has 48 divisors (see below), whose sum is σ = 215874446538240. Its totient is φ = 39645422756352.

The previous prime is 100221120120131. The next prime is 100221120120259. The reversal of 100221120120212 is 212021021122001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2853413 + ... + 14442444.

It is an arithmetic number, because the mean of its divisors is an integer number (4497384302880).

Almost surely, 2^{100221120120212} is an apocalyptic number.

It is an amenable number.

100221120120212 is an abundant number, since it is smaller than the sum of its proper divisors (115653326418028).

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

100221120120212 is a wasteful number, since it uses less digits than its factorization.

100221120120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311800 (or 17311798 counting only the distinct ones).

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

Adding to 100221120120212 its reverse (212021021122001), we get a palindrome (312242141242213).

The spelling of 100221120120212 in words is "one hundred trillion, two hundred twenty-one billion, one hundred twenty million, one hundred twenty thousand, two hundred twelve".