221874583660 has 12 divisors (see below), whose sum is σ = 465936625728. Its totient is φ = 88749833456.

The previous prime is 221874583639. The next prime is 221874583699. The reversal of 221874583660 is 66385478122.

It is a junction number, because it is equal to n+sod(n) for n = 221874583598 and 221874583607.

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, 5546864572 + ... + 5546864611.

It is an arithmetic number, because the mean of its divisors is an integer number (38828052144).

Almost surely, 2^221874583660 is an apocalyptic number.

221874583660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221874583660 is an abundant number, since it is smaller than the sum of its proper divisors (244062042068).

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

221874583660 is a wasteful number, since it uses less digits than its factorization.

221874583660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093729192 (or 11093729190 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 221874583660 in words is "two hundred twenty-one billion, eight hundred seventy-four million, five hundred eighty-three thousand, six hundred sixty".