221972704323 has 8 divisors (see below), whose sum is σ = 303962622288. Its totient is φ = 143982294624.

The previous prime is 221972704253. The next prime is 221972704363. The reversal of 221972704323 is 323407279122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221972704323 - 2⁸ = 221972704067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221972704363) 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, 999876936 + ... + 999877157.

It is an arithmetic number, because the mean of its divisors is an integer number (37995327786).

Almost surely, 2^221972704323 is an apocalyptic number.

221972704323 is a deficient number, since it is larger than the sum of its proper divisors (81989917965).

221972704323 is a wasteful number, since it uses less digits than its factorization.

221972704323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999754133.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 221972704323 in words is "two hundred twenty-one billion, nine hundred seventy-two million, seven hundred four thousand, three hundred twenty-three".