100217221055512 has 16 divisors (see below), whose sum is σ = 204989770341000. Its totient is φ = 45553282297920.

The previous prime is 100217221055509. The next prime is 100217221055543. The reversal of 100217221055512 is 215550122712001.

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, 569416028637 + ... + 569416028812.

Almost surely, 2^{100217221055512} is an apocalyptic number.

It is an amenable number.

100217221055512 is an abundant number, since it is smaller than the sum of its proper divisors (104772549285488).

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

100217221055512 is a wasteful number, since it uses less digits than its factorization.

100217221055512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138832057466 (or 1138832057462 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 34.

Adding to 100217221055512 its reverse (215550122712001), we get a palindrome (315767343767513).

The spelling of 100217221055512 in words is "one hundred trillion, two hundred seventeen billion, two hundred twenty-one million, fifty-five thousand, five hundred twelve".