111122021200079 has 2 divisors, whose sum is σ = 111122021200080. Its totient is φ = 111122021200078.

The previous prime is 111122021200063. The next prime is 111122021200097. The reversal of 111122021200079 is 970002120221111.

Together with next prime (111122021200097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111122021200079 - 2⁴ = 111122021200063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122021200049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561010600039 + 55561010600040.

It is an arithmetic number, because the mean of its divisors is an integer number (55561010600040).

Almost surely, 2^{111122021200079} is an apocalyptic number.

111122021200079 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122021200079 is an equidigital number, since it uses as much as digits as its factorization.

111122021200079 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 111122021200079 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred thousand, seventy-nine".