122143200 has 72 divisors (see below), whose sum is σ = 397583928. Its totient is φ = 32570880.

The previous prime is 122143199. The next prime is 122143213. The reversal of 122143200 is 2341221.

It is a super-2 number, since 2×122143200² = 29837922612480000, which contains 22 as substring.

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 122143200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23047 + ... + 27846.

It is an arithmetic number, because the mean of its divisors is an integer number (5521999).

Almost surely, 2^122143200 is an apocalyptic number.

122143200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122143200 is an abundant number, since it is smaller than the sum of its proper divisors (275440728).

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

122143200 is a wasteful number, since it uses less digits than its factorization.

122143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50916 (or 50903 counting only the distinct ones).

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

The square root of 122143200 is about 11051.8414755189. The cubic root of 122143200 is about 496.1615412081.

Adding to 122143200 its reverse (2341221), we get a palindrome (124484421).

The spelling of 122143200 in words is "one hundred twenty-two million, one hundred forty-three thousand, two hundred".