122445601512 has 128 divisors (see below), whose sum is σ = 335148710400. Its totient is φ = 37053543168.

The previous prime is 122445601483. The next prime is 122445601519. The reversal of 122445601512 is 215106544221.

It is a happy number.

It is a super-2 number, since 2×122445601512² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122445601519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4627183 + ... + 4653569.

It is an arithmetic number, because the mean of its divisors is an integer number (2618349300).

Almost surely, 2^122445601512 is an apocalyptic number.

122445601512 is a gapful number since it is divisible by the number (12) 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 122445601512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167574355200).

122445601512 is an abundant number, since it is smaller than the sum of its proper divisors (212703108888).

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

122445601512 is a wasteful number, since it uses less digits than its factorization.

122445601512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26655 (or 26651 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 122445601512 in words is "one hundred twenty-two billion, four hundred forty-five million, six hundred one thousand, five hundred twelve".