122201112011111 has 16 divisors (see below), whose sum is σ = 152078127475200. Its totient is φ = 95809220303328.

The previous prime is 122201112011101. The next prime is 122201112011113. The reversal of 122201112011111 is 111110211102221.

It is not a de Polignac number, because 122201112011111 - 2²⁶ = 122201044902247 is a prime.

It is a super-2 number, since 2×122201112011111² (a number of 29 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 122201112011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201112011113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15841467755 + ... + 15841475468.

It is an arithmetic number, because the mean of its divisors is an integer number (9504882967200).

Almost surely, 2^{122201112011111} is an apocalyptic number.

122201112011111 is a deficient number, since it is larger than the sum of its proper divisors (29877015464089).

122201112011111 is a wasteful number, since it uses less digits than its factorization.

122201112011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31682943278.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 122201112011111 its reverse (111110211102221), we get a palindrome (233311323113332).

The spelling of 122201112011111 in words is "one hundred twenty-two trillion, two hundred one billion, one hundred twelve million, eleven thousand, one hundred eleven".