122111222110112 has 72 divisors (see below), whose sum is σ = 253739265444000. Its totient is φ = 57838993838208.

The previous prime is 122111222110109. The next prime is 122111222110139. The reversal of 122111222110112 is 211011222111221.

It is a happy number.

It is a super-2 number, since 2×122111222110112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218041589 + ... + 218600907.

It is an arithmetic number, because the mean of its divisors is an integer number (3524156464500).

Almost surely, 2^{122111222110112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122111222110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126869632722000).

122111222110112 is an abundant number, since it is smaller than the sum of its proper divisors (131628043333888).

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

122111222110112 is a wasteful number, since it uses less digits than its factorization.

122111222110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578266 (or 578239 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122111222110112 its reverse (211011222111221), we get a palindrome (333122444221333).

The spelling of 122111222110112 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred twelve".