111012001212201 has 4 divisors (see below), whose sum is σ = 148016001616272. Its totient is φ = 74008000808132.

The previous prime is 111012001212193. The next prime is 111012001212251. The reversal of 111012001212201 is 102212100210111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111012001212201 - 2³ = 111012001212193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111012001212251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18502000202031 + ... + 18502000202036.

It is an arithmetic number, because the mean of its divisors is an integer number (37004000404068).

Almost surely, 2^{111012001212201} is an apocalyptic number.

It is an amenable number.

111012001212201 is a deficient number, since it is larger than the sum of its proper divisors (37004000404071).

111012001212201 is an equidigital number, since it uses as much as digits as its factorization.

111012001212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37004000404070.

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

Adding to 111012001212201 its reverse (102212100210111), we get a palindrome (213224101422312).

The spelling of 111012001212201 in words is "one hundred eleven trillion, twelve billion, one million, two hundred twelve thousand, two hundred one".