122012012111 has 32 divisors (see below), whose sum is σ = 142051968000. Its totient is φ = 103570030080.

The previous prime is 122012012099. The next prime is 122012012159. The reversal of 122012012111 is 111210210221.

It is not a de Polignac number, because 122012012111 - 2¹⁰ = 122012011087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012012611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13354901 + ... + 13364033.

It is an arithmetic number, because the mean of its divisors is an integer number (4439124000).

Almost surely, 2^122012012111 is an apocalyptic number.

122012012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122012012111 is a deficient number, since it is larger than the sum of its proper divisors (20039955889).

122012012111 is a wasteful number, since it uses less digits than its factorization.

122012012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719.

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

Adding to 122012012111 its reverse (111210210221), we get a palindrome (233222222332).

The spelling of 122012012111 in words is "one hundred twenty-two billion, twelve million, twelve thousand, one hundred eleven".