122210022011111 has 4 divisors (see below), whose sum is σ = 129398846835312. Its totient is φ = 115021197186912.

The previous prime is 122210022011089. The next prime is 122210022011117. The reversal of 122210022011111 is 111110220012221.

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 122210022011111 - 2⁴⁶ = 51841277833447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7188824824183 = 122210022011111 / (1 + 2 + 2 + 2 + 1 + 0 + 0 + 2 + 2 + 0 + 1 + 1 + 1 + 1 + 1).

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 122210022011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210022011117) 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, 3594412412075 + ... + 3594412412108.

It is an arithmetic number, because the mean of its divisors is an integer number (32349711708828).

Almost surely, 2^{122210022011111} is an apocalyptic number.

122210022011111 is a deficient number, since it is larger than the sum of its proper divisors (7188824824201).

122210022011111 is an equidigital number, since it uses as much as digits as its factorization.

122210022011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7188824824200.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122210022011111 its reverse (111110220012221), we get a palindrome (233320242023332).

The spelling of 122210022011111 in words is "one hundred twenty-two trillion, two hundred ten billion, twenty-two million, eleven thousand, one hundred eleven".