21210322200003 has 8 divisors (see below), whose sum is σ = 31422699555600. Its totient is φ = 14140214799984.

The previous prime is 21210322199953. The next prime is 21210322200013. The reversal of 21210322200003 is 30000222301212.

It is not a de Polignac number, because 21210322200003 - 2²⁸ = 21210053764547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21210322200013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392783744418 + ... + 392783744471.

It is an arithmetic number, because the mean of its divisors is an integer number (3927837444450).

Almost surely, 2^{21210322200003} is an apocalyptic number.

21210322200003 is a deficient number, since it is larger than the sum of its proper divisors (10212377355597).

21210322200003 is an equidigital number, since it uses as much as digits as its factorization.

21210322200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785567488898 (or 785567488892 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21210322200003 its reverse (30000222301212), we get a palindrome (51210544501215).

The spelling of 21210322200003 in words is "twenty-one trillion, two hundred ten billion, three hundred twenty-two million, two hundred thousand, three".