122111424440 has 64 divisors (see below), whose sum is σ = 279641484000. Its totient is φ = 47976486400.

The previous prime is 122111424437. The next prime is 122111424469. The reversal of 122111424440 is 44424111221.

It is a super-2 number, since 2×122111424440² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2879390 + ... + 2921490.

Almost surely, 2^122111424440 is an apocalyptic number.

122111424440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122111424440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139820742000).

122111424440 is an abundant number, since it is smaller than the sum of its proper divisors (157530059560).

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

122111424440 is a wasteful number, since it uses less digits than its factorization.

122111424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43400 (or 43396 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 122111424440 its reverse (44424111221), we get a palindrome (166535535661).

The spelling of 122111424440 in words is "one hundred twenty-two billion, one hundred eleven million, four hundred twenty-four thousand, four hundred forty".