2211201032111 has 4 divisors (see below), whose sum is σ = 2211211454952. Its totient is φ = 2211190609272.

The previous prime is 2211201032063. The next prime is 2211201032119. The reversal of 2211201032111 is 1112301021122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2211201032111 - 2³⁸ = 1936323125167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211201032111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211201032119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886441 + ... + 5319746.

It is an arithmetic number, because the mean of its divisors is an integer number (552802863738).

Almost surely, 2^{2211201032111} is an apocalyptic number.

2211201032111 is a deficient number, since it is larger than the sum of its proper divisors (10422841).

2211201032111 is a wasteful number, since it uses less digits than its factorization.

2211201032111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422840.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2211201032111 its reverse (1112301021122), we get a palindrome (3323502053233).

The spelling of 2211201032111 in words is "two trillion, two hundred eleven billion, two hundred one million, thirty-two thousand, one hundred eleven".