22451331401 has 8 divisors (see below), whose sum is σ = 23835736584. Its totient is φ = 21074008320.

The previous prime is 22451331391. The next prime is 22451331403. The reversal of 22451331401 is 10413315422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14391601225 + 8059730176 = 119965^2 + 89776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22451331401 - 2⁶ = 22451331337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22451331403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1763990 + ... + 1776671.

It is an arithmetic number, because the mean of its divisors is an integer number (2979467073).

Almost surely, 2^22451331401 is an apocalyptic number.

It is an amenable number.

22451331401 is a deficient number, since it is larger than the sum of its proper divisors (1384405183).

22451331401 is a wasteful number, since it uses less digits than its factorization.

22451331401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541051.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 22451331401 its reverse (10413315422), we get a palindrome (32864646823).

The spelling of 22451331401 in words is "twenty-two billion, four hundred fifty-one million, three hundred thirty-one thousand, four hundred one".