22212131331 has 8 divisors (see below), whose sum is σ = 31894342480. Its totient is φ = 13669003872.

The previous prime is 22212131321. The next prime is 22212131339. The reversal of 22212131331 is 13313121222.

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

It is not a de Polignac number, because 22212131331 - 2¹⁷ = 22212000259 is a prime.

It is a super-2 number, since 2×22212131331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22212131298 and 22212131307.

It is not an unprimeable number, because it can be changed into a prime (22212131339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284770876 + ... + 284770953.

It is an arithmetic number, because the mean of its divisors is an integer number (3986792810).

Almost surely, 2^22212131331 is an apocalyptic number.

22212131331 is a deficient number, since it is larger than the sum of its proper divisors (9682211149).

22212131331 is a wasteful number, since it uses less digits than its factorization.

22212131331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569541845.

The product of its digits is 432, while the sum is 21.

Adding to 22212131331 its reverse (13313121222), we get a palindrome (35525252553).

The spelling of 22212131331 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, three hundred thirty-one".