122210220011111 has 4 divisors (see below), whose sum is σ = 122416308072432. Its totient is φ = 122004131949792.

The previous prime is 122210220011101. The next prime is 122210220011147. The reversal of 122210220011111 is 111110022012221.

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 122210220011111 - 2³⁸ = 121935342104167 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 122210220011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210220011101) 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, 103044029771 + ... + 103044030956.

It is an arithmetic number, because the mean of its divisors is an integer number (30604077018108).

Almost surely, 2^{122210220011111} is an apocalyptic number.

122210220011111 is a deficient number, since it is larger than the sum of its proper divisors (206088061321).

122210220011111 is an equidigital number, since it uses as much as digits as its factorization.

122210220011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206088061320.

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

Adding to 122210220011111 its reverse (111110022012221), we get a palindrome (233320242023332).

The spelling of 122210220011111 in words is "one hundred twenty-two trillion, two hundred ten billion, two hundred twenty million, eleven thousand, one hundred eleven".