22481801 has 2 divisors, whose sum is σ = 22481802. Its totient is φ = 22481800.

The previous prime is 22481791. The next prime is 22481813. The reversal of 22481801 is 10818422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22278400 + 203401 = 4720^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 22481801 - 2¹⁸ = 22219657 is a prime.

It is not a weakly prime, because it can be changed into another prime (22481831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11240900 + 11240901.

It is an arithmetic number, because the mean of its divisors is an integer number (11240901).

Almost surely, 2^22481801 is an apocalyptic number.

It is an amenable number.

22481801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22481801 is an equidigital number, since it uses as much as digits as its factorization.

22481801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 22481801 is about 4741.4977591474. The cubic root of 22481801 is about 282.2346729569.

The spelling of 22481801 in words is "twenty-two million, four hundred eighty-one thousand, eight hundred one".