25612223122 has 16 divisors (see below), whose sum is σ = 38713399200. Its totient is φ = 12707845920.

The previous prime is 25612223113. The next prime is 25612223149. The reversal of 25612223122 is 22132221652.

It is a super-2 number, since 2×25612223122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584622 + ... + 626902.

It is an arithmetic number, because the mean of its divisors is an integer number (2419587450).

Almost surely, 2^25612223122 is an apocalyptic number.

25612223122 is a deficient number, since it is larger than the sum of its proper divisors (13101176078).

25612223122 is a wasteful number, since it uses less digits than its factorization.

25612223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44601.

The product of its digits is 5760, while the sum is 28.

Adding to 25612223122 its reverse (22132221652), we get a palindrome (47744444774).

The spelling of 25612223122 in words is "twenty-five billion, six hundred twelve million, two hundred twenty-three thousand, one hundred twenty-two".