1112121222131 has 2 divisors, whose sum is σ = 1112121222132. Its totient is φ = 1112121222130.

The previous prime is 1112121222103. The next prime is 1112121222143. The reversal of 1112121222131 is 1312221212111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112121222131 is a prime.

It is a super-2 number, since 2×1112121222131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1112121222181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060611065 + 556060611066.

It is an arithmetic number, because the mean of its divisors is an integer number (556060611066).

Almost surely, 2^{1112121222131} is an apocalyptic number.

1112121222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112121222131 is an equidigital number, since it uses as much as digits as its factorization.

1112121222131 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1112121222131 its reverse (1312221212111), we get a palindrome (2424342434242).

The spelling of 1112121222131 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-one".