122321400 has 48 divisors (see below), whose sum is σ = 379198200. Its totient is φ = 32618880.

The previous prime is 122321399. The next prime is 122321413. The reversal of 122321400 is 4123221.

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 122321400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101335 + ... + 102534.

Almost surely, 2^122321400 is an apocalyptic number.

122321400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122321400 is an abundant number, since it is smaller than the sum of its proper divisors (256876800).

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

122321400 is a wasteful number, since it uses less digits than its factorization.

122321400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203888 (or 203879 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 122321400 is about 11059.9005420483. The cubic root of 122321400 is about 496.4027144744.

Adding to 122321400 its reverse (4123221), we get a palindrome (126444621).

The spelling of 122321400 in words is "one hundred twenty-two million, three hundred twenty-one thousand, four hundred".