221450357220057 has 12 divisors (see below), whose sum is σ = 365568843664960. Its totient is φ = 126543061268568.

The previous prime is 221450357220023. The next prime is 221450357220067. The reversal of 221450357220057 is 750022753054122.

221450357220057 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 5 + 0 + 3 + 572 + 20 + 0 + 57 = 666.

It is not a de Polignac number, because 221450357220057 - 2¹⁵ = 221450357187289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221450357219994 and 221450357220021.

It is not an unprimeable number, because it can be changed into a prime (221450357220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1757542517557 + ... + 1757542517682.

Almost surely, 2^{221450357220057} is an apocalyptic number.

It is an amenable number.

221450357220057 is a deficient number, since it is larger than the sum of its proper divisors (144118486444903).

221450357220057 is a wasteful number, since it uses less digits than its factorization.

221450357220057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515085035252 (or 3515085035249 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 221450357220057 in words is "two hundred twenty-one trillion, four hundred fifty billion, three hundred fifty-seven million, two hundred twenty thousand, fifty-seven".