121314112666 has 32 divisors (see below), whose sum is σ = 188492572800. Its totient is φ = 58524413376.

The previous prime is 121314112649. The next prime is 121314112721. The reversal of 121314112666 is 666211413121.

It is a super-2 number, since 2×121314112666² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4239840 + ... + 4268356.

It is an arithmetic number, because the mean of its divisors is an integer number (5890392900).

Almost surely, 2^121314112666 is an apocalyptic number.

121314112666 is a deficient number, since it is larger than the sum of its proper divisors (67178460134).

121314112666 is a wasteful number, since it uses less digits than its factorization.

121314112666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29238.

The product of its digits is 10368, while the sum is 34.

Adding to 121314112666 its reverse (666211413121), we get a palindrome (787525525787).

The spelling of 121314112666 in words is "one hundred twenty-one billion, three hundred fourteen million, one hundred twelve thousand, six hundred sixty-six".