221232344324004 has 72 divisors (see below), whose sum is σ = 602248824777600. Its totient is φ = 68070900457152.

The previous prime is 221232344323973. The next prime is 221232344324021. The reversal of 221232344324004 is 400423443232122.

221232344324004 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 323 + 4 + 4 + 324 + 0 + 0 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 221232344324004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53608359 + ... + 57587505.

It is an arithmetic number, because the mean of its divisors is an integer number (8364567010800).

Almost surely, 2^{221232344324004} is an apocalyptic number.

It is an amenable number.

221232344324004 is an abundant number, since it is smaller than the sum of its proper divisors (381016480453596).

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

221232344324004 is a wasteful number, since it uses less digits than its factorization.

221232344324004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097969 (or 4097964 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 221232344324004 its reverse (400423443232122), we get a palindrome (621655787556126).

The spelling of 221232344324004 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, three hundred forty-four million, three hundred twenty-four thousand, four".