121338126 has 48 divisors (see below), whose sum is σ = 323572704. Its totient is φ = 32000832.

The previous prime is 121338109. The next prime is 121338167. The reversal of 121338126 is 621833121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121338126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35401 + ... + 38676.

It is an arithmetic number, because the mean of its divisors is an integer number (6741098).

Almost surely, 2^121338126 is an apocalyptic number.

121338126 is an abundant number, since it is smaller than the sum of its proper divisors (202234578).

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

121338126 is a wasteful number, since it uses less digits than its factorization.

121338126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74105 (or 74102 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 121338126 is about 11015.3586414606. The cubic root of 121338126 is about 495.0690323069.

The spelling of 121338126 in words is "one hundred twenty-one million, three hundred thirty-eight thousand, one hundred twenty-six".