2021111112079 has 2 divisors, whose sum is σ = 2021111112080. Its totient is φ = 2021111112078.

The previous prime is 2021111112073. The next prime is 2021111112101. The reversal of 2021111112079 is 9702111111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021111112079 - 2¹³ = 2021111103887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021111112073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010555556039 + 1010555556040.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555556040).

Almost surely, 2^{2021111112079} is an apocalyptic number.

2021111112079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021111112079 is an equidigital number, since it uses as much as digits as its factorization.

2021111112079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 2021111112079 in words is "two trillion, twenty-one billion, one hundred eleven million, one hundred twelve thousand, seventy-nine".