121660722 has 24 divisors (see below), whose sum is σ = 269208576. Its totient is φ = 39690456.

The previous prime is 121660703. The next prime is 121660727. The reversal of 121660722 is 227066121.

It is a super-2 number, since 2×121660722² = 29602662555122568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121660727) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 71058 + ... + 72749.

It is an arithmetic number, because the mean of its divisors is an integer number (11217024).

Almost surely, 2^121660722 is an apocalyptic number.

121660722 is an abundant number, since it is smaller than the sum of its proper divisors (147547854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121660722 is a wasteful number, since it uses less digits than its factorization.

121660722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143862 (or 143859 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 121660722 is about 11029.9919310941. The cubic root of 121660722 is about 495.5073830217.

The spelling of 121660722 in words is "one hundred twenty-one million, six hundred sixty thousand, seven hundred twenty-two".