1122211525013 has 2 divisors, whose sum is σ = 1122211525014. Its totient is φ = 1122211525012.

The previous prime is 1122211525009. The next prime is 1122211525079. The reversal of 1122211525013 is 3105251122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718964934724 + 403246590289 = 847918^2 + 635017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122211525013 - 2² = 1122211525009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122211525093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561105762506 + 561105762507.

It is an arithmetic number, because the mean of its divisors is an integer number (561105762507).

Almost surely, 2^{1122211525013} is an apocalyptic number.

It is an amenable number.

1122211525013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122211525013 is an equidigital number, since it uses as much as digits as its factorization.

1122211525013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 1122211525013 its reverse (3105251122211), we get a palindrome (4227462647224).

The spelling of 1122211525013 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, five hundred twenty-five thousand, thirteen".