221352372404 has 24 divisors (see below), whose sum is σ = 390109644288. Its totient is φ = 109894367520.

The previous prime is 221352372403. The next prime is 221352372431. The reversal of 221352372404 is 404273253122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221352372403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232157 + ... + 704699.

It is an arithmetic number, because the mean of its divisors is an integer number (16254568512).

Almost surely, 2^221352372404 is an apocalyptic number.

It is an amenable number.

221352372404 is a deficient number, since it is larger than the sum of its proper divisors (168757271884).

221352372404 is a wasteful number, since it uses less digits than its factorization.

221352372404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473375 (or 473373 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 221352372404 in words is "two hundred twenty-one billion, three hundred fifty-two million, three hundred seventy-two thousand, four hundred four".