22021120133317 has 2 divisors, whose sum is σ = 22021120133318. Its totient is φ = 22021120133316.

The previous prime is 22021120133291. The next prime is 22021120133329. The reversal of 22021120133317 is 71333102112022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20744007684481 + 1277112448836 = 4554559^2 + 1130094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021120133317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021120133347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010560066658 + 11010560066659.

It is an arithmetic number, because the mean of its divisors is an integer number (11010560066659).

Almost surely, 2^{22021120133317} is an apocalyptic number.

It is an amenable number.

22021120133317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021120133317 is an equidigital number, since it uses as much as digits as its factorization.

22021120133317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 22021120133317 its reverse (71333102112022), we get a palindrome (93354222245339).

The spelling of 22021120133317 in words is "twenty-two trillion, twenty-one billion, one hundred twenty million, one hundred thirty-three thousand, three hundred seventeen".