23122277225 has 48 divisors (see below), whose sum is σ = 29545537536. Its totient is φ = 17944416000.

The previous prime is 23122277203. The next prime is 23122277237. The reversal of 23122277225 is 52277222132.

It is not a de Polignac number, because 23122277225 - 2⁶ = 23122277161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53647760 + ... + 53648190.

It is an arithmetic number, because the mean of its divisors is an integer number (615532032).

Almost surely, 2^23122277225 is an apocalyptic number.

23122277225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23122277225 is a deficient number, since it is larger than the sum of its proper divisors (6423260311).

23122277225 is a wasteful number, since it uses less digits than its factorization.

23122277225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 901 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

Adding to 23122277225 its reverse (52277222132), we get a palindrome (75399499357).

The spelling of 23122277225 in words is "twenty-three billion, one hundred twenty-two million, two hundred seventy-seven thousand, two hundred twenty-five".