21442023402200 has 48 divisors (see below), whose sum is σ = 49853255255160. Its totient is φ = 8576714592000.

The previous prime is 21442023402047. The next prime is 21442023402227. The reversal of 21442023402200 is 220432024412.

It is a self number, because there is not a number n which added to its sum of digits gives 21442023402200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19203260 + ... + 20289140.

Almost surely, 2^{21442023402200} is an apocalyptic number.

21442023402200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21442023402200 is an abundant number, since it is smaller than the sum of its proper divisors (28411231852960).

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

21442023402200 is a wasteful number, since it uses less digits than its factorization.

21442023402200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184628 (or 1184619 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 21442023402200 its reverse (220432024412), we get a palindrome (21662455426612).

The spelling of 21442023402200 in words is "twenty-one trillion, four hundred forty-two billion, twenty-three million, four hundred two thousand, two hundred".