22312141221 has 8 divisors (see below), whose sum is σ = 30709183744. Its totient is φ = 14394929760.

The previous prime is 22312141219. The next prime is 22312141253. The reversal of 22312141221 is 12214121322.

It is a happy number.

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

It is not a de Polignac number, because 22312141221 - 2¹ = 22312141219 is a prime.

It is a super-3 number, since 3×22312141221³ (a number of 32 digits) contains 333 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 (22312141321) 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, 119957656 + ... + 119957841.

It is an arithmetic number, because the mean of its divisors is an integer number (3838647968).

Almost surely, 2^22312141221 is an apocalyptic number.

It is an amenable number.

22312141221 is a deficient number, since it is larger than the sum of its proper divisors (8397042523).

22312141221 is a wasteful number, since it uses less digits than its factorization.

22312141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239915531.

The product of its digits is 384, while the sum is 21.

Adding to 22312141221 its reverse (12214121322), we get a palindrome (34526262543).

The spelling of 22312141221 in words is "twenty-two billion, three hundred twelve million, one hundred forty-one thousand, two hundred twenty-one".