100212120079 has 2 divisors, whose sum is σ = 100212120080. Its totient is φ = 100212120078.

The previous prime is 100212120059. The next prime is 100212120157. The reversal of 100212120079 is 970021212001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212120079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100212120059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106060039 + 50106060040.

It is an arithmetic number, because the mean of its divisors is an integer number (50106060040).

Almost surely, 2^100212120079 is an apocalyptic number.

100212120079 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212120079 is an equidigital number, since it uses as much as digits as its factorization.

100212120079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 100212120079 in words is "one hundred billion, two hundred twelve million, one hundred twenty thousand, seventy-nine".