22421120525 has 24 divisors (see below), whose sum is σ = 29282203200. Its totient is φ = 16983129600.

The previous prime is 22421120483. The next prime is 22421120539. The reversal of 22421120525 is 52502112422.

It is not a de Polignac number, because 22421120525 - 2⁸ = 22421120269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22421120494 and 22421120503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 879965 + ... + 905085.

It is an arithmetic number, because the mean of its divisors is an integer number (1220091800).

Almost surely, 2^22421120525 is an apocalyptic number.

22421120525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22421120525 is a deficient number, since it is larger than the sum of its proper divisors (6861082675).

22421120525 is a wasteful number, since it uses less digits than its factorization.

22421120525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27029 (or 27024 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 22421120525 its reverse (52502112422), we get a palindrome (74923232947).

The spelling of 22421120525 in words is "twenty-two billion, four hundred twenty-one million, one hundred twenty thousand, five hundred twenty-five".