11321222021231 has 8 divisors (see below), whose sum is σ = 12014235354384. Its totient is φ = 10631215254400.

The previous prime is 11321222021227. The next prime is 11321222021273. The reversal of 11321222021231 is 13212022212311.

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

It is not a de Polignac number, because 11321222021231 - 2² = 11321222021227 is a prime.

It is a super-2 number, since 2×11321222021231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321222021197 and 11321222021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321522021231) 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, 751633820 + ... + 751648881.

It is an arithmetic number, because the mean of its divisors is an integer number (1501779419298).

Almost surely, 2^{11321222021231} is an apocalyptic number.

11321222021231 is a deficient number, since it is larger than the sum of its proper divisors (693013333153).

11321222021231 is a wasteful number, since it uses less digits than its factorization.

11321222021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503283161.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11321222021231 its reverse (13212022212311), we get a palindrome (24533244233542).

The spelling of 11321222021231 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, two hundred thirty-one".