122117666 has 32 divisors (see below), whose sum is σ = 207766080. Its totient is φ = 53323200.

The previous prime is 122117663. The next prime is 122117683. The reversal of 122117666 is 666711221.

It is not an unprimeable number, because it can be changed into a prime (122117663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176381 + ... + 177071.

It is an arithmetic number, because the mean of its divisors is an integer number (6492690).

Almost surely, 2^122117666 is an apocalyptic number.

122117666 is a deficient number, since it is larger than the sum of its proper divisors (85648414).

122117666 is a wasteful number, since it uses less digits than its factorization.

122117666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its digits is 6048, while the sum is 32.

The square root of 122117666 is about 11050.6862230361. The cubic root of 122117666 is about 496.1269646573.

Adding to 122117666 its reverse (666711221), we get a palindrome (788828887).

The spelling of 122117666 in words is "one hundred twenty-two million, one hundred seventeen thousand, six hundred sixty-six".