211220002120079 has 2 divisors, whose sum is σ = 211220002120080. Its totient is φ = 211220002120078.

The previous prime is 211220002120069. The next prime is 211220002120133. The reversal of 211220002120079 is 970021200022112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211220002120079 - 2⁸ = 211220002119823 is a prime.

It is a super-2 number, since 2×211220002120079² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211220002120069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610001060039 + 105610001060040.

It is an arithmetic number, because the mean of its divisors is an integer number (105610001060040).

Almost surely, 2^{211220002120079} is an apocalyptic number.

211220002120079 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220002120079 is an equidigital number, since it uses as much as digits as its factorization.

211220002120079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 211220002120079 in words is "two hundred eleven trillion, two hundred twenty billion, two million, one hundred twenty thousand, seventy-nine".