221939989560 has 96 divisors (see below), whose sum is σ = 723208590000. Its totient is φ = 59027802624.

The previous prime is 221939989547. The next prime is 221939989631. The reversal of 221939989560 is 65989939122.

221939989560 is a `hidden beast` number, since 22 + 19 + 39 + 9 + 8 + 9 + 560 = 666.

It is a super-3 number, since 3×221939989560³ (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676885 + ... + 949764.

Almost surely, 2^221939989560 is an apocalyptic number.

221939989560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221939989560 is an abundant number, since it is smaller than the sum of its proper divisors (501268600440).

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

221939989560 is a wasteful number, since it uses less digits than its factorization.

221939989560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627045 (or 1627038 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 221939989560 in words is "two hundred twenty-one billion, nine hundred thirty-nine million, nine hundred eighty-nine thousand, five hundred sixty".