121248177 has 16 divisors (see below), whose sum is σ = 171865920. Its totient is φ = 75816000.

The previous prime is 121248133. The next prime is 121248241. The reversal of 121248177 is 771842121.

It is not a de Polignac number, because 121248177 - 2²² = 117053873 is a prime.

It is a super-2 number, since 2×121248177² = 29402240851646658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121248077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4774 + ... + 16287.

It is an arithmetic number, because the mean of its divisors is an integer number (10741620).

Almost surely, 2^121248177 is an apocalyptic number.

It is an amenable number.

121248177 is a deficient number, since it is larger than the sum of its proper divisors (50617743).

121248177 is a wasteful number, since it uses less digits than its factorization.

121248177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21184.

The product of its digits is 6272, while the sum is 33.

The square root of 121248177 is about 11011.2749942956. The cubic root of 121248177 is about 494.9466690835.

It can be divided in two parts, 12124 and 8177, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 121248177 in words is "one hundred twenty-one million, two hundred forty-eight thousand, one hundred seventy-seven".