2122122200111 has 4 divisors (see below), whose sum is σ = 2122125450000. Its totient is φ = 2122118950224.

The previous prime is 2122122200087. The next prime is 2122122200123. The reversal of 2122122200111 is 1110022212212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122122200111 is a prime.

It is a super-2 number, since 2×2122122200111² (a number of 25 digits) contains 22 as substring.

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 2122122200111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122122200141) 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, 267446 + ... + 2077443.

It is an arithmetic number, because the mean of its divisors is an integer number (530531362500).

Almost surely, 2^{2122122200111} is an apocalyptic number.

2122122200111 is a deficient number, since it is larger than the sum of its proper divisors (3249889).

2122122200111 is an equidigital number, since it uses as much as digits as its factorization.

2122122200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249888.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122122200111 its reverse (1110022212212), we get a palindrome (3232144412323).

The spelling of 2122122200111 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, one hundred eleven".