22051521045 has 48 divisors (see below), whose sum is σ = 39067142400. Its totient is φ = 11503128960.

The previous prime is 22051521043. The next prime is 22051521047. The reversal of 22051521045 is 54012515022.

It is an interprime number because it is at equal distance from previous prime (22051521043) and next prime (22051521047).

It is not a de Polignac number, because 22051521045 - 2¹ = 22051521043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22051521043) 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, 468916 + ... + 513794.

It is an arithmetic number, because the mean of its divisors is an integer number (813898800).

Almost surely, 2^22051521045 is an apocalyptic number.

It is an amenable number.

22051521045 is a deficient number, since it is larger than the sum of its proper divisors (17015621355).

22051521045 is a wasteful number, since it uses less digits than its factorization.

22051521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45130 (or 45127 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 22051521045 in words is "twenty-two billion, fifty-one million, five hundred twenty-one thousand, forty-five".