22074834521 has 2 divisors, whose sum is σ = 22074834522. Its totient is φ = 22074834520.

The previous prime is 22074834491. The next prime is 22074834563. The reversal of 22074834521 is 12543847022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14855953225 + 7218881296 = 121885^2 + 84964^2 .

It is a cyclic number.

It is not a de Polignac number, because 22074834521 - 2¹⁰ = 22074833497 is a prime.

It is not a weakly prime, because it can be changed into another prime (22074434521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11037417260 + 11037417261.

It is an arithmetic number, because the mean of its divisors is an integer number (11037417261).

Almost surely, 2^22074834521 is an apocalyptic number.

It is an amenable number.

22074834521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22074834521 is an equidigital number, since it uses as much as digits as its factorization.

22074834521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 22074834521 in words is "twenty-two billion, seventy-four million, eight hundred thirty-four thousand, five hundred twenty-one".