2112111012201 has 4 divisors (see below), whose sum is σ = 2816148016272. Its totient is φ = 1408074008132.

The previous prime is 2112111012191. The next prime is 2112111012203. The reversal of 2112111012201 is 1022101112112.

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 2112111012201 - 2⁷ = 2112111012073 is a prime.

It is a super-2 number, since 2×2112111012201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112111012203) 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, 352018502031 + ... + 352018502036.

It is an arithmetic number, because the mean of its divisors is an integer number (704037004068).

Almost surely, 2^{2112111012201} is an apocalyptic number.

It is an amenable number.

2112111012201 is a deficient number, since it is larger than the sum of its proper divisors (704037004071).

2112111012201 is an equidigital number, since it uses as much as digits as its factorization.

2112111012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704037004070.

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

Adding to 2112111012201 its reverse (1022101112112), we get a palindrome (3134212124313).

The spelling of 2112111012201 in words is "two trillion, one hundred twelve billion, one hundred eleven million, twelve thousand, two hundred one".