122237778019398 has 128 divisors (see below), whose sum is σ = 263470830120960. Its totient is φ = 37731220416000.

The previous prime is 122237778019387. The next prime is 122237778019451. The reversal of 122237778019398 is 893910877732221.

It is a happy number.

122237778019398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3451174533 + ... + 3451209951.

It is an arithmetic number, because the mean of its divisors is an integer number (2058365860320).

Almost surely, 2^{122237778019398} is an apocalyptic number.

122237778019398 is an abundant number, since it is smaller than the sum of its proper divisors (141233052101562).

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

122237778019398 is a wasteful number, since it uses less digits than its factorization.

122237778019398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43774.

The product of its (nonzero) digits is 128024064, while the sum is 69.

The spelling of 122237778019398 in words is "one hundred twenty-two trillion, two hundred thirty-seven billion, seven hundred seventy-eight million, nineteen thousand, three hundred ninety-eight".