121266081 has 12 divisors (see below), whose sum is σ = 181202580. Its totient is φ = 78056160.

The previous prime is 121266059. The next prime is 121266127. The reversal of 121266081 is 180662121.

It can be written as a sum of positive squares in 2 ways, for example, as 51710481 + 69555600 = 7191^2 + 8340^2 .

It is not a de Polignac number, because 121266081 - 2¹⁰ = 121265057 is a prime.

It is a super-2 number, since 2×121266081² = 29410924802197122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121266001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232050 + ... + 232571.

It is an arithmetic number, because the mean of its divisors is an integer number (15100215).

Almost surely, 2^121266081 is an apocalyptic number.

It is an amenable number.

121266081 is a deficient number, since it is larger than the sum of its proper divisors (59936499).

121266081 is a wasteful number, since it uses less digits than its factorization.

121266081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464656 (or 464653 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 121266081 is about 11012.0879491584. The cubic root of 121266081 is about 494.9710298319.

The spelling of 121266081 in words is "one hundred twenty-one million, two hundred sixty-six thousand, eighty-one".