122012001111 has 96 divisors (see below), whose sum is σ = 234029779200. Its totient is φ = 55427742720.

The previous prime is 122012001103. The next prime is 122012001143. The reversal of 122012001111 is 111100210221.

It is not a de Polignac number, because 122012001111 - 2³ = 122012001103 is a prime.

It is a super-2 number, since 2×122012001111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012001151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 246655 + ... + 552143.

It is an arithmetic number, because the mean of its divisors is an integer number (2437810200).

Almost surely, 2^122012001111 is an apocalyptic number.

122012001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122012001111 is a deficient number, since it is larger than the sum of its proper divisors (112017778089).

122012001111 is a wasteful number, since it uses less digits than its factorization.

122012001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305549 (or 305542 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122012001111 its reverse (111100210221), we get a palindrome (233112211332).

The spelling of 122012001111 in words is "one hundred twenty-two billion, twelve million, one thousand, one hundred eleven".