22153321225 has 48 divisors (see below), whose sum is σ = 33220730880. Its totient is φ = 14315572800.

The previous prime is 22153321213. The next prime is 22153321243. The reversal of 22153321225 is 52212335122.

It is not a de Polignac number, because 22153321225 - 2⁵ = 22153321193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22153321193 and 22153321202.

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, 617634 + ... + 652516.

It is an arithmetic number, because the mean of its divisors is an integer number (692098560).

Almost surely, 2^22153321225 is an apocalyptic number.

22153321225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22153321225 is a deficient number, since it is larger than the sum of its proper divisors (11067409655).

22153321225 is a wasteful number, since it uses less digits than its factorization.

22153321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35110 (or 35105 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

Adding to 22153321225 its reverse (52212335122), we get a palindrome (74365656347).

The spelling of 22153321225 in words is "twenty-two billion, one hundred fifty-three million, three hundred twenty-one thousand, two hundred twenty-five".