221200665048 has 80 divisors (see below), whose sum is σ = 675890942760. Its totient is φ = 67030502400.

The previous prime is 221200665047. The next prime is 221200665107. The reversal of 221200665048 is 840566002122.

It is a happy number.

221200665048 is a `hidden beast` number, since 22 + 120 + 0 + 6 + 6 + 504 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200665047) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15509193 + ... + 15523448.

Almost surely, 2^221200665048 is an apocalyptic number.

It is an amenable number.

221200665048 is an abundant number, since it is smaller than the sum of its proper divisors (454690277712).

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

221200665048 is a wasteful number, since it uses less digits than its factorization.

221200665048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31032670 (or 31032657 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 221200665048 in words is "two hundred twenty-one billion, two hundred million, six hundred sixty-five thousand, forty-eight".