111201200021279 has 2 divisors, whose sum is σ = 111201200021280. Its totient is φ = 111201200021278.

The previous prime is 111201200021203. The next prime is 111201200021299. The reversal of 111201200021279 is 972120002102111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111201200021279 - 2¹⁶ = 111201199955743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111201200021299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600600010639 + 55600600010640.

It is an arithmetic number, because the mean of its divisors is an integer number (55600600010640).

Almost surely, 2^{111201200021279} is an apocalyptic number.

111201200021279 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201200021279 is an equidigital number, since it uses as much as digits as its factorization.

111201200021279 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 111201200021279 in words is "one hundred eleven trillion, two hundred one billion, two hundred million, twenty-one thousand, two hundred seventy-nine".