121576223 has 4 divisors (see below), whose sum is σ = 123870168. Its totient is φ = 119282280.

The previous prime is 121576201. The next prime is 121576237. The reversal of 121576223 is 322675121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322675121 = 1153 ⋅279857.

It is a cyclic number.

It is not a de Polignac number, because 121576223 - 2⁸ = 121575967 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 (121576283) 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, 1146893 + ... + 1146998.

It is an arithmetic number, because the mean of its divisors is an integer number (30967542).

Almost surely, 2^121576223 is an apocalyptic number.

121576223 is a deficient number, since it is larger than the sum of its proper divisors (2293945).

121576223 is an equidigital number, since it uses as much as digits as its factorization.

121576223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293944.

The product of its digits is 5040, while the sum is 29.

The square root of 121576223 is about 11026.1608459155. The cubic root of 121576223 is about 495.3926388519.

The spelling of 121576223 in words is "one hundred twenty-one million, five hundred seventy-six thousand, two hundred twenty-three".