21222000200111 has 4 divisors (see below), whose sum is σ = 21223359990192. Its totient is φ = 21220640410032.

The previous prime is 21222000200087. The next prime is 21222000200119. The reversal of 21222000200111 is 11100200022212.

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 21222000200111 - 2⁶ = 21222000200047 is a prime.

It is a super-2 number, since 2×21222000200111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222000200119) 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, 679871630 + ... + 679902843.

It is an arithmetic number, because the mean of its divisors is an integer number (5305839997548).

Almost surely, 2^{21222000200111} is an apocalyptic number.

21222000200111 is a deficient number, since it is larger than the sum of its proper divisors (1359790081).

21222000200111 is a wasteful number, since it uses less digits than its factorization.

21222000200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359790080.

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

Adding to 21222000200111 its reverse (11100200022212), we get a palindrome (32322200222323).

The spelling of 21222000200111 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thousand, one hundred eleven".