21022010200211 has 4 divisors (see below), whose sum is σ = 21041675318400. Its totient is φ = 21002345082024.

The previous prime is 21022010200199. The next prime is 21022010200241. The reversal of 21022010200211 is 11200201022012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21022010200211 - 2¹⁸ = 21022009938067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022010200241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9832557491 + ... + 9832559628.

It is an arithmetic number, because the mean of its divisors is an integer number (5260418829600).

Almost surely, 2^{21022010200211} is an apocalyptic number.

21022010200211 is a deficient number, since it is larger than the sum of its proper divisors (19665118189).

21022010200211 is a wasteful number, since it uses less digits than its factorization.

21022010200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19665118188.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21022010200211 its reverse (11200201022012), we get a palindrome (32222211222223).

The spelling of 21022010200211 in words is "twenty-one trillion, twenty-two billion, ten million, two hundred thousand, two hundred eleven".