23221041121 has 4 divisors (see below), whose sum is σ = 24443201200. Its totient is φ = 21998881044.

The previous prime is 23221041043. The next prime is 23221041161. The reversal of 23221041121 is 12114012232.

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 23221041121 - 2¹³ = 23221032929 is a prime.

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: 1222160059 = 23221041121 / (2 + 3 + 2 + 2 + 1 + 0 + 4 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221041161) 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, 611080011 + ... + 611080048.

It is an arithmetic number, because the mean of its divisors is an integer number (6110800300).

Almost surely, 2^23221041121 is an apocalyptic number.

It is an amenable number.

23221041121 is a deficient number, since it is larger than the sum of its proper divisors (1222160079).

23221041121 is a wasteful number, since it uses less digits than its factorization.

23221041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222160078.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23221041121 its reverse (12114012232), we get a palindrome (35335053353).

The spelling of 23221041121 in words is "twenty-three billion, two hundred twenty-one million, forty-one thousand, one hundred twenty-one".