22451121304 has 32 divisors (see below), whose sum is σ = 43004364480. Its totient is φ = 10983433984.

The previous prime is 22451121283. The next prime is 22451121347. The reversal of 22451121304 is 40312115422.

It is a congruent number.

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, 1669134 + ... + 1682530.

It is an arithmetic number, because the mean of its divisors is an integer number (1343886390).

Almost surely, 2^22451121304 is an apocalyptic number.

It is an amenable number.

22451121304 is a deficient number, since it is larger than the sum of its proper divisors (20553243176).

22451121304 is a wasteful number, since it uses less digits than its factorization.

22451121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17907 (or 17903 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22451121304 its reverse (40312115422), we get a palindrome (62763236726).

The spelling of 22451121304 in words is "twenty-two billion, four hundred fifty-one million, one hundred twenty-one thousand, three hundred four".