221995514896 has 45 divisors (see below), whose sum is σ = 437509560189. Its totient is φ = 109121582400.

The previous prime is 221995514843. The next prime is 221995514929. The reversal of 221995514896 is 698415599122.

The square root of 221995514896 is 471164.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7218881296 + 214776633600 = 84964^2 + 463440^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 114963051 + ... + 114964981.

Almost surely, 2^221995514896 is an apocalyptic number.

221995514896 is the 471164-th square number.

It is an amenable number.

221995514896 is a deficient number, since it is larger than the sum of its proper divisors (215514045293).

221995514896 is an frugal number, since it uses more digits than its factorization.

221995514896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992 (or 1994 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 61.

The spelling of 221995514896 in words is "two hundred twenty-one billion, nine hundred ninety-five million, five hundred fourteen thousand, eight hundred ninety-six".