23221234425 has 24 divisors (see below), whose sum is σ = 38409880896. Its totient is φ = 12379032640.

The previous prime is 23221234423. The next prime is 23221234457. The reversal of 23221234425 is 52443212232.

It is not a de Polignac number, because 23221234425 - 2¹ = 23221234423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23221234392 and 23221234401.

It is not an unprimeable number, because it can be changed into a prime (23221234423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98572 + ... + 236978.

It is an arithmetic number, because the mean of its divisors is an integer number (1600411704).

Almost surely, 2^23221234425 is an apocalyptic number.

23221234425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23221234425 is a deficient number, since it is larger than the sum of its proper divisors (15188646471).

23221234425 is a wasteful number, since it uses less digits than its factorization.

23221234425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140657 (or 140652 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

Adding to 23221234425 its reverse (52443212232), we get a palindrome (75664446657).

The spelling of 23221234425 in words is "twenty-three billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred twenty-five".