22058885021 has 4 divisors (see below), whose sum is σ = 22134171612. Its totient is φ = 21983598432.

The previous prime is 22058884999. The next prime is 22058885059. The reversal of 22058885021 is 12058885022.

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 13119182521 + 8939702500 = 114539^2 + 94550^2 .

It is a cyclic number.

It is not a de Polignac number, because 22058885021 - 2⁶ = 22058884957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22058885021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22058885621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37642856 + ... + 37643441.

It is an arithmetic number, because the mean of its divisors is an integer number (5533542903).

Almost surely, 2^22058885021 is an apocalyptic number.

It is an amenable number.

22058885021 is a deficient number, since it is larger than the sum of its proper divisors (75286591).

22058885021 is an equidigital number, since it uses as much as digits as its factorization.

22058885021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75286590.

The product of its (nonzero) digits is 102400, while the sum is 41.

Subtracting from 22058885021 its reverse (12058885022), we obtain a palindrome (9999999999).

The spelling of 22058885021 in words is "twenty-two billion, fifty-eight million, eight hundred eighty-five thousand, twenty-one".