22450001321 has 48 divisors (see below), whose sum is σ = 27104523264. Its totient is φ = 18496896000.

The previous prime is 22450001311. The next prime is 22450001359. The reversal of 22450001321 is 12310005422.

It is not a de Polignac number, because 22450001321 - 2⁶ = 22450001257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22450001293 and 22450001302.

It is not an unprimeable number, because it can be changed into a prime (22450001311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14856956 + ... + 14858466.

It is an arithmetic number, because the mean of its divisors is an integer number (564677568).

Almost surely, 2^22450001321 is an apocalyptic number.

It is an amenable number.

22450001321 is a deficient number, since it is larger than the sum of its proper divisors (4654521943).

22450001321 is a wasteful number, since it uses less digits than its factorization.

22450001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22450001321 its reverse (12310005422), we get a palindrome (34760006743).

The spelling of 22450001321 in words is "twenty-two billion, four hundred fifty million, one thousand, three hundred twenty-one".