22001522441 has 4 divisors (see below), whose sum is σ = 22001910084. Its totient is φ = 22001134800.

The previous prime is 22001522437. The next prime is 22001522471. The reversal of 22001522441 is 14422510022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7516196416 + 14485326025 = 86696^2 + 120355^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001522441 - 2² = 22001522437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001522471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90230 + ... + 228351.

It is an arithmetic number, because the mean of its divisors is an integer number (5500477521).

Almost surely, 2^22001522441 is an apocalyptic number.

It is an amenable number.

22001522441 is a deficient number, since it is larger than the sum of its proper divisors (387643).

22001522441 is an equidigital number, since it uses as much as digits as its factorization.

22001522441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387642.

The product of its (nonzero) digits is 1280, while the sum is 23.

The spelling of 22001522441 in words is "twenty-two billion, one million, five hundred twenty-two thousand, four hundred forty-one".