22073141521 has 2 divisors, whose sum is σ = 22073141522. Its totient is φ = 22073141520.

The previous prime is 22073141483. The next prime is 22073141527. The reversal of 22073141521 is 12514137022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12954992400 + 9118149121 = 113820^2 + 95489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22073141521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22073141521.

It is not a weakly prime, because it can be changed into another prime (22073141527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11036570760 + 11036570761.

It is an arithmetic number, because the mean of its divisors is an integer number (11036570761).

Almost surely, 2^22073141521 is an apocalyptic number.

It is an amenable number.

22073141521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22073141521 is an equidigital number, since it uses as much as digits as its factorization.

22073141521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 22073141521 its reverse (12514137022), we get a palindrome (34587278543).

The spelling of 22073141521 in words is "twenty-two billion, seventy-three million, one hundred forty-one thousand, five hundred twenty-one".