221657273332116 has 24 divisors (see below), whose sum is σ = 518145826037280. Its totient is φ = 73750683263712.

The previous prime is 221657273332063. The next prime is 221657273332129. The reversal of 221657273332116 is 611233372756122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16884307371 + ... + 16884320498.

It is an arithmetic number, because the mean of its divisors is an integer number (21589409418220).

Almost surely, 2^{221657273332116} is an apocalyptic number.

It is an amenable number.

221657273332116 is an abundant number, since it is smaller than the sum of its proper divisors (296488552705164).

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

221657273332116 is a wasteful number, since it uses less digits than its factorization.

221657273332116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33768628423 (or 33768628421 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 51.

The spelling of 221657273332116 in words is "two hundred twenty-one trillion, six hundred fifty-seven billion, two hundred seventy-three million, three hundred thirty-two thousand, one hundred sixteen".