212112121079 has 2 divisors, whose sum is σ = 212112121080. Its totient is φ = 212112121078.

The previous prime is 212112121063. The next prime is 212112121139. The reversal of 212112121079 is 970121211212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212112121079 - 2⁴ = 212112121063 is a prime.

It is a super-2 number, since 2×212112121079² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212112121049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056060539 + 106056060540.

It is an arithmetic number, because the mean of its divisors is an integer number (106056060540).

Almost surely, 2^212112121079 is an apocalyptic number.

212112121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112121079 is an equidigital number, since it uses as much as digits as its factorization.

212112121079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 212112121079 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, seventy-nine".