122217664 has 14 divisors (see below), whose sum is σ = 242525804. Its totient is φ = 61108800.

The previous prime is 122217659. The next prime is 122217677. The reversal of 122217664 is 466712221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954762 + ... + 954889.

Almost surely, 2^122217664 is an apocalyptic number.

It is an amenable number.

122217664 is a deficient number, since it is larger than the sum of its proper divisors (120308140).

122217664 is an equidigital number, since it uses as much as digits as its factorization.

122217664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909663 (or 1909653 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 122217664 is about 11055.2098125725. The cubic root of 122217664 is about 496.2623482050.

Adding to 122217664 its reverse (466712221), we get a palindrome (588929885).

The spelling of 122217664 in words is "one hundred twenty-two million, two hundred seventeen thousand, six hundred sixty-four".