111001112020201 has 12 divisors (see below), whose sum is σ = 121435609300572. Its totient is φ = 101406249824256.

The previous prime is 111001112020181. The next prime is 111001112020231. The reversal of 111001112020201 is 102020211100111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 37859704344576 + 73141407675625 = 6153024^2 + 8552275^2 .

It is not a de Polignac number, because 111001112020201 - 2³³ = 110992522085609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001112020231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3385608936 + ... + 3385641721.

It is an arithmetic number, because the mean of its divisors is an integer number (10119634108381).

Almost surely, 2^{111001112020201} is an apocalyptic number.

It is an amenable number.

111001112020201 is a deficient number, since it is larger than the sum of its proper divisors (10434497280371).

111001112020201 is an equidigital number, since it uses as much as digits as its factorization.

111001112020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771250780 (or 6771250767 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111001112020201 its reverse (102020211100111), we get a palindrome (213021323120312).

The spelling of 111001112020201 in words is "one hundred eleven trillion, one billion, one hundred twelve million, twenty thousand, two hundred one".