221357136292 has 12 divisors (see below), whose sum is σ = 390332050416. Its totient is φ = 109833693320.

The previous prime is 221357136277. The next prime is 221357136313. The reversal of 221357136292 is 292631753122.

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, 211218118 + ... + 211219165.

It is an arithmetic number, because the mean of its divisors is an integer number (32527670868).

Almost surely, 2^221357136292 is an apocalyptic number.

It is an amenable number.

221357136292 is a deficient number, since it is larger than the sum of its proper divisors (168974914124).

221357136292 is a wasteful number, since it uses less digits than its factorization.

221357136292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422437418 (or 422437416 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The spelling of 221357136292 in words is "two hundred twenty-one billion, three hundred fifty-seven million, one hundred thirty-six thousand, two hundred ninety-two".