11211222012131 has 2 divisors, whose sum is σ = 11211222012132. Its totient is φ = 11211222012130.

The previous prime is 11211222012119. The next prime is 11211222012139. The reversal of 11211222012131 is 13121022211211.

It is a strong prime.

It is an emirp because it is prime and its reverse (13121022211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211222012131 - 2¹⁰ = 11211222011107 is a prime.

It is a super-2 number, since 2×11211222012131² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11211222012139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605611006065 + 5605611006066.

It is an arithmetic number, because the mean of its divisors is an integer number (5605611006066).

Almost surely, 2^{11211222012131} is an apocalyptic number.

11211222012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211222012131 is an equidigital number, since it uses as much as digits as its factorization.

11211222012131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11211222012131 its reverse (13121022211211), we get a palindrome (24332244223342).

The spelling of 11211222012131 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, one hundred thirty-one".