122401224 has 96 divisors (see below), whose sum is σ = 382955040. Its totient is φ = 34905600.

The previous prime is 122401219. The next prime is 122401229. The reversal of 122401224 is 422104221.

It is an interprime number because it is at equal distance from previous prime (122401219) and next prime (122401229).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122401197 and 122401206.

It is not an unprimeable number, because it can be changed into a prime (122401229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8919 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (3989115).

Almost surely, 2^122401224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122401224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191477520).

122401224 is an abundant number, since it is smaller than the sum of its proper divisors (260553816).

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

122401224 is a wasteful number, since it uses less digits than its factorization.

122401224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131 (or 9124 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 122401224 is about 11063.5086658799. The cubic root of 122401224 is about 496.5106711470.

Adding to 122401224 its reverse (422104221), we get a palindrome (544505445).

The spelling of 122401224 in words is "one hundred twenty-two million, four hundred one thousand, two hundred twenty-four".