122245489912 has 64 divisors (see below), whose sum is σ = 282904735680. Its totient is φ = 48223752192.

The previous prime is 122245489901. The next prime is 122245489939. The reversal of 122245489912 is 219984542221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19138 + ... + 494830.

It is an arithmetic number, because the mean of its divisors is an integer number (4420386495).

Almost surely, 2^122245489912 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 122245489912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141452367840).

122245489912 is an abundant number, since it is smaller than the sum of its proper divisors (160659245768).

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

122245489912 is a wasteful number, since it uses less digits than its factorization.

122245489912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476072 (or 476068 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The spelling of 122245489912 in words is "one hundred twenty-two billion, two hundred forty-five million, four hundred eighty-nine thousand, nine hundred twelve".