221053695912 has 96 divisors (see below), whose sum is σ = 720225105600. Its totient is φ = 59834080512.

The previous prime is 221053695859. The next prime is 221053695937. The reversal of 221053695912 is 219596350122.

221053695912 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 53 + 6 + 9 + 591 + 2 = 666.

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, 11532493 + ... + 11551644.

It is an arithmetic number, because the mean of its divisors is an integer number (7502344850).

Almost surely, 2^221053695912 is an apocalyptic number.

It is an amenable number.

221053695912 is an abundant number, since it is smaller than the sum of its proper divisors (499171409688).

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

221053695912 is a wasteful number, since it uses less digits than its factorization.

221053695912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23084175 (or 23084168 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 221053695912 in words is "two hundred twenty-one billion, fifty-three million, six hundred ninety-five thousand, nine hundred twelve".