2122210021111 has 4 divisors (see below), whose sum is σ = 2233905285400. Its totient is φ = 2010514756824.

The previous prime is 2122210021109. The next prime is 2122210021133. The reversal of 2122210021111 is 1111200122212.

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 2122210021111 - 2¹ = 2122210021109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122210021171) 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, 55847632116 + ... + 55847632153.

It is an arithmetic number, because the mean of its divisors is an integer number (558476321350).

Almost surely, 2^{2122210021111} is an apocalyptic number.

2122210021111 is a deficient number, since it is larger than the sum of its proper divisors (111695264289).

2122210021111 is a wasteful number, since it uses less digits than its factorization.

2122210021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111695264288.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2122210021111 its reverse (1111200122212), we get a palindrome (3233410143323).

The spelling of 2122210021111 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, twenty-one thousand, one hundred eleven".