21022220010211 has 8 divisors (see below), whose sum is σ = 24536572899840. Its totient is φ = 17635661771208.

The previous prime is 21022220010163. The next prime is 21022220010217. The reversal of 21022220010211 is 11201002222012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21022220010211 - 2²³ = 21022211621603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022220010217) 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, 31948662301 + ... + 31948662958.

It is an arithmetic number, because the mean of its divisors is an integer number (3067071612480).

Almost surely, 2^{21022220010211} is an apocalyptic number.

21022220010211 is a deficient number, since it is larger than the sum of its proper divisors (3514352889629).

21022220010211 is an equidigital number, since it uses as much as digits as its factorization.

21022220010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63897325313.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022220010211 its reverse (11201002222012), we get a palindrome (32223222232223).

The spelling of 21022220010211 in words is "twenty-one trillion, twenty-two billion, two hundred twenty million, ten thousand, two hundred eleven".