2111112021201 has 4 divisors (see below), whose sum is σ = 2814816028272. Its totient is φ = 1407408014132.

The previous prime is 2111112021197. The next prime is 2111112021229. The reversal of 2111112021201 is 1021202111112.

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 2111112021201 - 2² = 2111112021197 is a prime.

It is a super-3 number, since 3×2111112021201³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2111112021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351852003531 + ... + 351852003536.

It is an arithmetic number, because the mean of its divisors is an integer number (703704007068).

Almost surely, 2^{2111112021201} is an apocalyptic number.

It is an amenable number.

2111112021201 is a deficient number, since it is larger than the sum of its proper divisors (703704007071).

2111112021201 is an equidigital number, since it uses as much as digits as its factorization.

2111112021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703704007070.

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

Adding to 2111112021201 its reverse (1021202111112), we get a palindrome (3132314132313).

The spelling of 2111112021201 in words is "two trillion, one hundred eleven billion, one hundred twelve million, twenty-one thousand, two hundred one".