221342898464 has 48 divisors (see below), whose sum is σ = 436664825856. Its totient is φ = 110444160000.

The previous prime is 221342898457. The next prime is 221342898493. The reversal of 221342898464 is 464898243122.

It is a super-2 number, since 2×221342898464² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35981789 + ... + 35987939.

It is an arithmetic number, because the mean of its divisors is an integer number (9097183872).

Almost surely, 2^221342898464 is an apocalyptic number.

It is an amenable number.

221342898464 is a deficient number, since it is larger than the sum of its proper divisors (215321927392).

221342898464 is a wasteful number, since it uses less digits than its factorization.

221342898464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289 (or 8281 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 53.

The spelling of 221342898464 in words is "two hundred twenty-one billion, three hundred forty-two million, eight hundred ninety-eight thousand, four hundred sixty-four".