111201012212089 has 2 divisors, whose sum is σ = 111201012212090. Its totient is φ = 111201012212088.

The previous prime is 111201012211981. The next prime is 111201012212153. The reversal of 111201012212089 is 980212210102111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90723396163689 + 20477616048400 = 9524883^2 + 4525220^2 .

It is a cyclic number.

It is not a de Polignac number, because 111201012212089 - 2¹⁵ = 111201012179321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111201012212089.

It is not a weakly prime, because it can be changed into another prime (111201012272089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600506106044 + 55600506106045.

It is an arithmetic number, because the mean of its divisors is an integer number (55600506106045).

Almost surely, 2^{111201012212089} is an apocalyptic number.

It is an amenable number.

111201012212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201012212089 is an equidigital number, since it uses as much as digits as its factorization.

111201012212089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 31.

The spelling of 111201012212089 in words is "one hundred eleven trillion, two hundred one billion, twelve million, two hundred twelve thousand, eighty-nine".