122289045340 has 96 divisors (see below), whose sum is σ = 320732181504. Its totient is φ = 38049730560.

The previous prime is 122289045331. The next prime is 122289045343. The reversal of 122289045340 is 43540982221.

It is a super-2 number, since 2×122289045340² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122289045293 and 122289045302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122289045343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819769 + ... + 957391.

It is an arithmetic number, because the mean of its divisors is an integer number (3340960224).

Almost surely, 2^122289045340 is an apocalyptic number.

122289045340 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 122289045340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160366090752).

122289045340 is an abundant number, since it is smaller than the sum of its proper divisors (198443136164).

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

122289045340 is a wasteful number, since it uses less digits than its factorization.

122289045340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138227 (or 138225 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 122289045340 in words is "one hundred twenty-two billion, two hundred eighty-nine million, forty-five thousand, three hundred forty".