122221011101112 has 128 divisors (see below), whose sum is σ = 423276228979200. Its totient is φ = 31745717164800.

The previous prime is 122221011101107. The next prime is 122221011101171. The reversal of 122221011101112 is 211101110122221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3674256189 + ... + 3674289452.

It is an arithmetic number, because the mean of its divisors is an integer number (3306845538900).

Almost surely, 2^{122221011101112} is an apocalyptic number.

122221011101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122221011101112 is an abundant number, since it is smaller than the sum of its proper divisors (301055217878088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122221011101112 is a wasteful number, since it uses less digits than its factorization.

122221011101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348545674 (or 7348545664 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122221011101112 its reverse (211101110122221), we get a palindrome (333322121223333).

The spelling of 122221011101112 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, eleven million, one hundred one thousand, one hundred twelve".