111122021200901 has 2 divisors, whose sum is σ = 111122021200902. Its totient is φ = 111122021200900.

The previous prime is 111122021200867. The next prime is 111122021200969. The reversal of 111122021200901 is 109002120221111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104479164465025 + 6642856735876 = 10221505^2 + 2577374^2 .

It is a cyclic number.

It is not a de Polignac number, because 111122021200901 - 2¹⁸ = 111122020938757 is a prime.

It is a super-3 number, since 3×111122021200901³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122021100901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561010600450 + 55561010600451.

It is an arithmetic number, because the mean of its divisors is an integer number (55561010600451).

Almost surely, 2^{111122021200901} is an apocalyptic number.

It is an amenable number.

111122021200901 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122021200901 is an equidigital number, since it uses as much as digits as its factorization.

111122021200901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 111122021200901 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred thousand, nine hundred one".