111121120122201 has 20 divisors (see below), whose sum is σ = 189709425535872. Its totient is φ = 63497782926648.

The previous prime is 111121120122191. The next prime is 111121120122211. The reversal of 111121120122201 is 102221021121111.

It is a happy number.

111121120122201 is a `hidden beast` number, since 1 + 111 + 211 + 20 + 122 + 201 = 666.

It is an interprime number because it is at equal distance from previous prime (111121120122191) and next prime (111121120122211).

It is not a de Polignac number, because 111121120122201 - 2¹⁸ = 111121119860057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111121120122211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97990405185 + ... + 97990406318.

Almost surely, 2^{111121120122201} is an apocalyptic number.

It is an amenable number.

111121120122201 is a deficient number, since it is larger than the sum of its proper divisors (78588305413671).

111121120122201 is an equidigital number, since it uses as much as digits as its factorization.

111121120122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195980811522 (or 195980811513 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111121120122201 its reverse (102221021121111), we get a palindrome (213342141243312).

The spelling of 111121120122201 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, two hundred one".