22053411521 has 2 divisors, whose sum is σ = 22053411522. Its totient is φ = 22053411520.

The previous prime is 22053411493. The next prime is 22053411539. The reversal of 22053411521 is 12511435022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21459027121 + 594384400 = 146489^2 + 24380^2 .

It is a cyclic number.

It is not a de Polignac number, because 22053411521 - 2¹⁴ = 22053395137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22053411571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11026705760 + 11026705761.

It is an arithmetic number, because the mean of its divisors is an integer number (11026705761).

Almost surely, 2^22053411521 is an apocalyptic number.

It is an amenable number.

22053411521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22053411521 is an equidigital number, since it uses as much as digits as its factorization.

22053411521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 22053411521 its reverse (12511435022), we get a palindrome (34564846543).

The spelling of 22053411521 in words is "twenty-two billion, fifty-three million, four hundred eleven thousand, five hundred twenty-one".