122040000 has 280 divisors, whose sum is σ = 452292720. Its totient is φ = 32256000.

The previous prime is 122039999. The next prime is 122040007. The reversal of 122040000 is 40221.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (122040007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1079944 + ... + 1080056.

Almost surely, 2^122040000 is an apocalyptic number.

122040000 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 122040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226146360).

122040000 is an abundant number, since it is smaller than the sum of its proper divisors (330252720).

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

122040000 is an equidigital number, since it uses as much as digits as its factorization.

122040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 122040000 is about 11047.1715837132. The cubic root of 122040000 is about 496.0217645670.

Adding to 122040000 its reverse (40221), we get a palindrome (122080221).

The spelling of 122040000 in words is "one hundred twenty-two million, forty thousand".