22251310320 has 80 divisors (see below), whose sum is σ = 68998476672. Its totient is φ = 5932012800.

The previous prime is 22251310307. The next prime is 22251310339. The reversal of 22251310320 is 2301315222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007395 + ... + 1029245.

Almost surely, 2^22251310320 is an apocalyptic number.

22251310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22251310320 is an abundant number, since it is smaller than the sum of its proper divisors (46747166352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22251310320 is a wasteful number, since it uses less digits than its factorization.

22251310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26110 (or 26104 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 22251310320 its reverse (2301315222), we get a palindrome (24552625542).

The spelling of 22251310320 in words is "twenty-two billion, two hundred fifty-one million, three hundred ten thousand, three hundred twenty".