21200300204402 has 32 divisors (see below), whose sum is σ = 35580034525824. Its totient is φ = 9392065488000.

The previous prime is 21200300204393. The next prime is 21200300204581. The reversal of 21200300204402 is 20440200300212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60029483 + ... + 60381614.

It is an arithmetic number, because the mean of its divisors is an integer number (1111876078932).

Almost surely, 2^{21200300204402} is an apocalyptic number.

21200300204402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21200300204402 is a deficient number, since it is larger than the sum of its proper divisors (14379734321422).

21200300204402 is a wasteful number, since it uses less digits than its factorization.

21200300204402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120411314.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21200300204402 its reverse (20440200300212), we get a palindrome (41640500504614).

The spelling of 21200300204402 in words is "twenty-one trillion, two hundred billion, three hundred million, two hundred four thousand, four hundred two".