122978700 has 216 divisors, whose sum is σ = 434118048. Its totient is φ = 28892160.

The previous prime is 122978699. The next prime is 122978707. The reversal of 122978700 is 7879221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (122978707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 268872 + ... + 269328.

Almost surely, 2^122978700 is an apocalyptic number.

122978700 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 122978700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217059024).

122978700 is an abundant number, since it is smaller than the sum of its proper divisors (311139348).

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

122978700 is a wasteful number, since it uses less digits than its factorization.

122978700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 122978700 is about 11089.5761866719. The cubic root of 122978700 is about 497.2902746389.

The spelling of 122978700 in words is "one hundred twenty-two million, nine hundred seventy-eight thousand, seven hundred".