122149888644 has 48 divisors (see below), whose sum is σ = 326385920000. Its totient is φ = 34830016416.

The previous prime is 122149888631. The next prime is 122149888649. The reversal of 122149888644 is 446888941221.

It is a happy number.

122149888644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (122149888649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1415164 + ... + 1498995.

Almost surely, 2^122149888644 is an apocalyptic number.

122149888644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122149888644 is an abundant number, since it is smaller than the sum of its proper divisors (204236031356).

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

122149888644 is a wasteful number, since it uses less digits than its factorization.

122149888644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914672 (or 2914670 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 57.

The spelling of 122149888644 in words is "one hundred twenty-two billion, one hundred forty-nine million, eight hundred eighty-eight thousand, six hundred forty-four".