12120221121131 has 2 divisors, whose sum is σ = 12120221121132. Its totient is φ = 12120221121130.

The previous prime is 12120221121089. The next prime is 12120221121139. The reversal of 12120221121131 is 13112112202121.

It is a strong prime.

It is an emirp because it is prime and its reverse (13112112202121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120221121131 - 2¹⁸ = 12120220858987 is a prime.

It is a super-2 number, since 2×12120221121131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120221121139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060110560565 + 6060110560566.

It is an arithmetic number, because the mean of its divisors is an integer number (6060110560566).

Almost surely, 2^{12120221121131} is an apocalyptic number.

12120221121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120221121131 is an equidigital number, since it uses as much as digits as its factorization.

12120221121131 is an evil number, because the sum of its binary digits is even.

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

Adding to 12120221121131 its reverse (13112112202121), we get a palindrome (25232333323252).

The spelling of 12120221121131 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-one".