122012201111 has 4 divisors (see below), whose sum is σ = 122972927232. Its totient is φ = 121051474992.

The previous prime is 122012201099. The next prime is 122012201123. The reversal of 122012201111 is 111102210221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111102210221 = 641 ⋅173326381.

It is an interprime number because it is at equal distance from previous prime (122012201099) and next prime (122012201123).

It is a cyclic number.

It is not a de Polignac number, because 122012201111 - 2¹⁸ = 122011938967 is a prime.

It is a super-2 number, since 2×122012201111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012231111) 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, 480362870 + ... + 480363123.

It is an arithmetic number, because the mean of its divisors is an integer number (30743231808).

Almost surely, 2^122012201111 is an apocalyptic number.

122012201111 is a deficient number, since it is larger than the sum of its proper divisors (960726121).

122012201111 is an equidigital number, since it uses as much as digits as its factorization.

122012201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960726120.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122012201111 its reverse (111102210221), we get a palindrome (233114411332).

The spelling of 122012201111 in words is "one hundred twenty-two billion, twelve million, two hundred one thousand, one hundred eleven".