42221217909933 has 8 divisors (see below), whose sum is σ = 62549952459200. Its totient is φ = 28147478606604.

The previous prime is 42221217909817. The next prime is 42221217909953. The reversal of 42221217909933 is 33990971212224.

42221217909933 is a `hidden beast` number, since 4 + 2 + 221 + 217 + 90 + 99 + 33 = 666.

It is not a de Polignac number, because 42221217909933 - 2²⁰ = 42221216861357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42221217909933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221217909953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781874405713 + ... + 781874405766.

It is an arithmetic number, because the mean of its divisors is an integer number (7818744057400).

Almost surely, 2^{42221217909933} is an apocalyptic number.

It is an amenable number.

42221217909933 is a deficient number, since it is larger than the sum of its proper divisors (20328734549267).

42221217909933 is a wasteful number, since it uses less digits than its factorization.

42221217909933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563748811488 (or 1563748811482 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 42221217909933 in words is "forty-two trillion, two hundred twenty-one billion, two hundred seventeen million, nine hundred nine thousand, nine hundred thirty-three".