111201202112001 has 32 divisors (see below), whose sum is σ = 149932752076800. Its totient is φ = 73304790488640.

The previous prime is 111201202111931. The next prime is 111201202112027. The reversal of 111201202112001 is 100211202102111.

It is a happy number.

It is not a de Polignac number, because 111201202112001 - 2¹¹ = 111201202109953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111201202112041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368271156 + ... + 368572986.

It is an arithmetic number, because the mean of its divisors is an integer number (4685398502400).

Almost surely, 2^{111201202112001} is an apocalyptic number.

It is an amenable number.

111201202112001 is a deficient number, since it is larger than the sum of its proper divisors (38731549964799).

111201202112001 is a wasteful number, since it uses less digits than its factorization.

111201202112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304229.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111201202112001 its reverse (100211202102111), we get a palindrome (211412404214112).

The spelling of 111201202112001 in words is "one hundred eleven trillion, two hundred one billion, two hundred two million, one hundred twelve thousand, one".