22210021201211 has 4 divisors (see below), whose sum is σ = 22210088823552. Its totient is φ = 22209953578872.

The previous prime is 22210021201133. The next prime is 22210021201217. The reversal of 22210021201211 is 11210212001222.

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 22210021201211 - 2¹⁰ = 22210021200187 is a prime.

It is a super-2 number, since 2×22210021201211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22210021201211.

It is not an unprimeable number, because it can be changed into a prime (22210021201217) 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, 33316091 + ... + 33976196.

It is an arithmetic number, because the mean of its divisors is an integer number (5552522205888).

Almost surely, 2^{22210021201211} is an apocalyptic number.

22210021201211 is a deficient number, since it is larger than the sum of its proper divisors (67622341).

22210021201211 is an equidigital number, since it uses as much as digits as its factorization.

22210021201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67622340.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22210021201211 its reverse (11210212001222), we get a palindrome (33420233202433).

The spelling of 22210021201211 in words is "twenty-two trillion, two hundred ten billion, twenty-one million, two hundred one thousand, two hundred eleven".