121162255 has 4 divisors (see below), whose sum is σ = 145394712. Its totient is φ = 96929800.

The previous prime is 121162253. The next prime is 121162271. The reversal of 121162255 is 552261121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552261121 = 61 ⋅9053461.

It is not a de Polignac number, because 121162255 - 2¹ = 121162253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121162253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12116221 + ... + 12116230.

It is an arithmetic number, because the mean of its divisors is an integer number (36348678).

Almost surely, 2^121162255 is an apocalyptic number.

121162255 is a deficient number, since it is larger than the sum of its proper divisors (24232457).

121162255 is an equidigital number, since it uses as much as digits as its factorization.

121162255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24232456.

The product of its digits is 1200, while the sum is 25.

The square root of 121162255 is about 11007.3727564755. The cubic root of 121162255 is about 494.8297275118.

The spelling of 121162255 in words is "one hundred twenty-one million, one hundred sixty-two thousand, two hundred fifty-five".