122401500 has 96 divisors (see below), whose sum is σ = 383912256. Its totient is φ = 30124800.

The previous prime is 122401451. The next prime is 122401507. The reversal of 122401500 is 5104221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122401500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122401507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16362 + ... + 22638.

It is an arithmetic number, because the mean of its divisors is an integer number (3999086).

Almost surely, 2^122401500 is an apocalyptic number.

122401500 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 122401500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191956128).

122401500 is an abundant number, since it is smaller than the sum of its proper divisors (261510756).

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

122401500 is a wasteful number, since it uses less digits than its factorization.

122401500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312 (or 6300 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 122401500 is about 11063.5211393118. The cubic root of 122401500 is about 496.5110443373.

Adding to 122401500 its reverse (5104221), we get a palindrome (127505721).

The spelling of 122401500 in words is "one hundred twenty-two million, four hundred one thousand, five hundred".