122443445440 has 56 divisors (see below), whose sum is σ = 292330022400. Its totient is φ = 48849451008.

The previous prime is 122443445419. The next prime is 122443445447. The reversal of 122443445440 is 44544344221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122443445440.

It is not an unprimeable number, because it can be changed into a prime (122443445447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376965 + ... + 622084.

Almost surely, 2^122443445440 is an apocalyptic number.

122443445440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122443445440 is an abundant number, since it is smaller than the sum of its proper divisors (169886576960).

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

122443445440 is an equidigital number, since it uses as much as digits as its factorization.

122443445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999449 (or 999439 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 122443445440 its reverse (44544344221), we get a palindrome (166987789661).

The spelling of 122443445440 in words is "one hundred twenty-two billion, four hundred forty-three million, four hundred forty-five thousand, four hundred forty".