22221414221 has 4 divisors (see below), whose sum is σ = 23528556252. Its totient is φ = 20914272192.

The previous prime is 22221414217. The next prime is 22221414263. The reversal of 22221414221 is 12241412222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10839724996 + 11381689225 = 104114^2 + 106685^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221414221 - 2² = 22221414217 is a prime.

It is a super-2 number, since 2×22221414221² (a number of 21 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 (22221414521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653570990 + ... + 653571023.

It is an arithmetic number, because the mean of its divisors is an integer number (5882139063).

Almost surely, 2^22221414221 is an apocalyptic number.

It is an amenable number.

22221414221 is a deficient number, since it is larger than the sum of its proper divisors (1307142031).

22221414221 is a wasteful number, since it uses less digits than its factorization.

22221414221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307142030.

The product of its digits is 1024, while the sum is 23.

Adding to 22221414221 its reverse (12241412222), we get a palindrome (34462826443).

The spelling of 22221414221 in words is "twenty-two billion, two hundred twenty-one million, four hundred fourteen thousand, two hundred twenty-one".