212122331212139 has 2 divisors, whose sum is σ = 212122331212140. Its totient is φ = 212122331212138.

The previous prime is 212122331212073. The next prime is 212122331212213. The reversal of 212122331212139 is 931212133221212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212122331212139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212122331212099 and 212122331212108.

It is not a weakly prime, because it can be changed into another prime (212122331218139) 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, 106061165606069 + 106061165606070.

It is an arithmetic number, because the mean of its divisors is an integer number (106061165606070).

Almost surely, 2^{212122331212139} is an apocalyptic number.

212122331212139 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122331212139 is an equidigital number, since it uses as much as digits as its factorization.

212122331212139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The spelling of 212122331212139 in words is "two hundred twelve trillion, one hundred twenty-two billion, three hundred thirty-one million, two hundred twelve thousand, one hundred thirty-nine".