221300614992 has 80 divisors (see below), whose sum is σ = 573207062400. Its totient is φ = 73571813376.

The previous prime is 221300614967. The next prime is 221300614999. The reversal of 221300614992 is 299416003122.

It is a self number, because there is not a number n which added to its sum of digits gives 221300614992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300614999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32574348 + ... + 32581140.

It is an arithmetic number, because the mean of its divisors is an integer number (7165088280).

Almost surely, 2^221300614992 is an apocalyptic number.

It is an amenable number.

221300614992 is an abundant number, since it is smaller than the sum of its proper divisors (351906447408).

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

221300614992 is a wasteful number, since it uses less digits than its factorization.

221300614992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500 (or 8494 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 221300614992 in words is "two hundred twenty-one billion, three hundred million, six hundred fourteen thousand, nine hundred ninety-two".