122111344140 has 48 divisors (see below), whose sum is σ = 341950049280. Its totient is φ = 32559378880.

The previous prime is 122111344139. The next prime is 122111344153. The reversal of 122111344140 is 41443111221.

It is a happy number.

It is a super-2 number, since 2×122111344140² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122111344140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449371 + ... + 667949.

It is an arithmetic number, because the mean of its divisors is an integer number (7123959360).

Almost surely, 2^122111344140 is an apocalyptic number.

122111344140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111344140 is an abundant number, since it is smaller than the sum of its proper divisors (219838705140).

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

122111344140 is a wasteful number, since it uses less digits than its factorization.

122111344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227902 (or 227900 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 122111344140 its reverse (41443111221), we get a palindrome (163554455361).

The spelling of 122111344140 in words is "one hundred twenty-two billion, one hundred eleven million, three hundred forty-four thousand, one hundred forty".