221636757222104 has 64 divisors (see below), whose sum is σ = 476336158272000. Its totient is φ = 94707193641984.

The previous prime is 221636757222079. The next prime is 221636757222121. The reversal of 221636757222104 is 401222757636122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172269797 + ... + 173551595.

It is an arithmetic number, because the mean of its divisors is an integer number (7442752473000).

Almost surely, 2^{221636757222104} is an apocalyptic number.

It is an amenable number.

221636757222104 is an abundant number, since it is smaller than the sum of its proper divisors (254699401049896).

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

221636757222104 is a wasteful number, since it uses less digits than its factorization.

221636757222104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290912 (or 1290908 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 221636757222104 in words is "two hundred twenty-one trillion, six hundred thirty-six billion, seven hundred fifty-seven million, two hundred twenty-two thousand, one hundred four".