121331164 has 24 divisors (see below), whose sum is σ = 222058368. Its totient is φ = 57897840.

The previous prime is 121331153. The next prime is 121331167. The reversal of 121331164 is 461133121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121331167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49119 + ... + 51529.

It is an arithmetic number, because the mean of its divisors is an integer number (9252432).

Almost surely, 2^121331164 is an apocalyptic number.

It is an amenable number.

121331164 is a deficient number, since it is larger than the sum of its proper divisors (100727204).

121331164 is a wasteful number, since it uses less digits than its factorization.

121331164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2983 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 121331164 is about 11015.0426236125. The cubic root of 121331164 is about 495.0595636245.

Adding to 121331164 its reverse (461133121), we get a palindrome (582464285).

The spelling of 121331164 in words is "one hundred twenty-one million, three hundred thirty-one thousand, one hundred sixty-four".