122138822880 has 576 divisors, whose sum is σ = 458547905088. Its totient is φ = 29479403520.

The previous prime is 122138822857. The next prime is 122138822893. The reversal of 122138822880 is 88228831221.

It is a super-2 number, since 2×122138822880² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73267807 + ... + 73269473.

It is an arithmetic number, because the mean of its divisors is an integer number (796090113).

Almost surely, 2^122138822880 is an apocalyptic number.

122138822880 is a gapful number since it is divisible by the number (10) 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 122138822880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229273952544).

122138822880 is an abundant number, since it is smaller than the sum of its proper divisors (336409082208).

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

122138822880 is a wasteful number, since it uses less digits than its factorization.

122138822880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 122138822880 in words is "one hundred twenty-two billion, one hundred thirty-eight million, eight hundred twenty-two thousand, eight hundred eighty".