2111101212201 has 4 divisors (see below), whose sum is σ = 2814801616272. Its totient is φ = 1407400808132.

The previous prime is 2111101212191. The next prime is 2111101212251. The reversal of 2111101212201 is 1022121011112.

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 2111101212201 - 2⁵ = 2111101212169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111101212251) 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, 351850202031 + ... + 351850202036.

It is an arithmetic number, because the mean of its divisors is an integer number (703700404068).

Almost surely, 2^{2111101212201} is an apocalyptic number.

It is an amenable number.

2111101212201 is a deficient number, since it is larger than the sum of its proper divisors (703700404071).

2111101212201 is an equidigital number, since it uses as much as digits as its factorization.

2111101212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703700404070.

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

Adding to 2111101212201 its reverse (1022121011112), we get a palindrome (3133222223313).

The spelling of 2111101212201 in words is "two trillion, one hundred eleven billion, one hundred one million, two hundred twelve thousand, two hundred one".