13222111021057 has 2 divisors, whose sum is σ = 13222111021058. Its totient is φ = 13222111021056.

The previous prime is 13222111020983. The next prime is 13222111021169. The reversal of 13222111021057 is 75012011122231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11518122794896 + 1703988226161 = 3393836^2 + 1305369^2 .

It is an emirp because it is prime and its reverse (75012011122231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13222111021057 is a prime.

It is not a weakly prime, because it can be changed into another prime (13222111028057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611055510528 + 6611055510529.

It is an arithmetic number, because the mean of its divisors is an integer number (6611055510529).

Almost surely, 2^{13222111021057} is an apocalyptic number.

It is an amenable number.

13222111021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222111021057 is an equidigital number, since it uses as much as digits as its factorization.

13222111021057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 13222111021057 its reverse (75012011122231), we get a palindrome (88234122143288).

The spelling of 13222111021057 in words is "thirteen trillion, two hundred twenty-two billion, one hundred eleven million, twenty-one thousand, fifty-seven".