42223554621 has 12 divisors (see below), whose sum is σ = 61308898560. Its totient is φ = 28001658120.

The previous prime is 42223554617. The next prime is 42223554623. The reversal of 42223554621 is 12645532224.

42223554621 is a `hidden beast` number, since 4 + 2 + 2 + 23 + 5 + 5 + 4 + 621 = 666.

It is not a de Polignac number, because 42223554621 - 2² = 42223554617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223554623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12279711 + ... + 12283148.

It is an arithmetic number, because the mean of its divisors is an integer number (5109074880).

Almost surely, 2^42223554621 is an apocalyptic number.

It is an amenable number.

42223554621 is a deficient number, since it is larger than the sum of its proper divisors (19085343939).

42223554621 is a wasteful number, since it uses less digits than its factorization.

42223554621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24563056 (or 24563053 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The spelling of 42223554621 in words is "forty-two billion, two hundred twenty-three million, five hundred fifty-four thousand, six hundred twenty-one".