22311211321 has 8 divisors (see below), whose sum is σ = 25499605760. Its totient is φ = 19123086528.

The previous prime is 22311211313. The next prime is 22311211327. The reversal of 22311211321 is 12311211322.

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

It is not a de Polignac number, because 22311211321 - 2³ = 22311211313 is a prime.

It is a super-3 number, since 3×22311211321³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22311211327) 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, 161920 + ... + 266158.

It is an arithmetic number, because the mean of its divisors is an integer number (3187450720).

Almost surely, 2^22311211321 is an apocalyptic number.

It is an amenable number.

22311211321 is a deficient number, since it is larger than the sum of its proper divisors (3188394439).

22311211321 is a wasteful number, since it uses less digits than its factorization.

22311211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134823.

The product of its digits is 144, while the sum is 19.

Adding to 22311211321 its reverse (12311211322), we get a palindrome (34622422643).

Subtracting from 22311211321 its reverse (12311211322), we obtain a palindrome (9999999999).

The spelling of 22311211321 in words is "twenty-two billion, three hundred eleven million, two hundred eleven thousand, three hundred twenty-one".