122204442400 has 36 divisors (see below), whose sum is σ = 298331596962. Its totient is φ = 48881776640.

The previous prime is 122204442343. The next prime is 122204442403. The reversal of 122204442400 is 4244402221.

It can be written as a sum of positive squares in 3 ways, for example, as 116966736016 + 5237706384 = 342004^2 + 72372^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (122204442403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76376977 + ... + 76378576.

Almost surely, 2^122204442400 is an apocalyptic number.

122204442400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122204442400 is an abundant number, since it is smaller than the sum of its proper divisors (176127154562).

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

122204442400 is a wasteful number, since it uses less digits than its factorization.

122204442400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152755573 (or 152755560 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 122204442400 its reverse (4244402221), we get a palindrome (126448844621).

The spelling of 122204442400 in words is "one hundred twenty-two billion, two hundred four million, four hundred forty-two thousand, four hundred".