223251121 has 4 divisors (see below), whose sum is σ = 235001200. Its totient is φ = 211501044.

The previous prime is 223251101. The next prime is 223251139. The reversal of 223251121 is 121152322.

223251121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223251121 - 2⁹ = 223250609 is a prime.

It is a super-3 number, since 3×223251121³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 11750059 = 223251121 / (2 + 2 + 3 + 2 + 5 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223251101) 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, 5875011 + ... + 5875048.

It is an arithmetic number, because the mean of its divisors is an integer number (58750300).

Almost surely, 2^223251121 is an apocalyptic number.

It is an amenable number.

223251121 is a deficient number, since it is larger than the sum of its proper divisors (11750079).

223251121 is a wasteful number, since it uses less digits than its factorization.

223251121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11750078.

The product of its digits is 240, while the sum is 19.

The square root of 223251121 is about 14941.5903102715. The cubic root of 223251121 is about 606.6402418081.

The spelling of 223251121 in words is "two hundred twenty-three million, two hundred fifty-one thousand, one hundred twenty-one".