221772363364325 has 24 divisors (see below), whose sum is σ = 276461726745600. Its totient is φ = 176473539790400.

The previous prime is 221772363364291. The next prime is 221772363364327. The reversal of 221772363364325 is 523463363277122.

It is not a de Polignac number, because 221772363364325 - 2¹⁰ = 221772363363301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221772363364327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52630751 + ... + 56688099.

It is an arithmetic number, because the mean of its divisors is an integer number (11519238614400).

Almost surely, 2^{221772363364325} is an apocalyptic number.

221772363364325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221772363364325 is a deficient number, since it is larger than the sum of its proper divisors (54689363381275).

221772363364325 is a wasteful number, since it uses less digits than its factorization.

221772363364325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068997 (or 4068992 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 56.

The spelling of 221772363364325 in words is "two hundred twenty-one trillion, seven hundred seventy-two billion, three hundred sixty-three million, three hundred sixty-four thousand, three hundred twenty-five".