142221200 has 60 divisors (see below), whose sum is σ = 372760368. Its totient is φ = 51715200.

The previous prime is 142221197. The next prime is 142221203. The reversal of 142221200 is 2122241.

It is an interprime number because it is at equal distance from previous prime (142221197) and next prime (142221203).

It is not an unprimeable number, because it can be changed into a prime (142221203) by changing a digit.

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, 11762 + ... + 20561.

Almost surely, 2^142221200 is an apocalyptic number.

142221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142221200 is an abundant number, since it is smaller than the sum of its proper divisors (230539168).

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

142221200 is a wasteful number, since it uses less digits than its factorization.

142221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32352 (or 32341 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 142221200 is about 11925.6530219523. The cubic root of 142221200 is about 521.9811015701.

Adding to 142221200 its reverse (2122241), we get a palindrome (144343441).

It can be divided in two parts, 1422 and 21200, that added together give a palindrome (22622).

The spelling of 142221200 in words is "one hundred forty-two million, two hundred twenty-one thousand, two hundred".