21200221001010 has 16 divisors (see below), whose sum is σ = 50880530402496. Its totient is φ = 5653392266928.

The previous prime is 21200221000919. The next prime is 21200221001051. The reversal of 21200221001010 is 1010012200212.

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 7 ways as a sum of consecutive naturals, for example, 353337016654 + ... + 353337016713.

It is an arithmetic number, because the mean of its divisors is an integer number (3180033150156).

Almost surely, 2^{21200221001010} is an apocalyptic number.

21200221001010 is an abundant number, since it is smaller than the sum of its proper divisors (29680309401486).

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

21200221001010 is a wasteful number, since it uses less digits than its factorization.

21200221001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706674033377.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21200221001010 its reverse (1010012200212), we get a palindrome (22210233201222).

The spelling of 21200221001010 in words is "twenty-one trillion, two hundred billion, two hundred twenty-one million, one thousand, ten".