33223211231 has 12 divisors (see below), whose sum is σ = 40920787008. Its totient is φ = 26801917632.

The previous prime is 33223211201. The next prime is 33223211233. The reversal of 33223211231 is 13211232233.

It is not a de Polignac number, because 33223211231 - 2¹⁴ = 33223194847 is a prime.

It is a super-2 number, since 2×33223211231² (a number of 22 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 = 33223211197 and 33223211206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223211233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19941071 + ... + 19942736.

It is an arithmetic number, because the mean of its divisors is an integer number (3410065584).

Almost surely, 2^33223211231 is an apocalyptic number.

33223211231 is a deficient number, since it is larger than the sum of its proper divisors (7697575777).

33223211231 is a wasteful number, since it uses less digits than its factorization.

33223211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883838 (or 39883831 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 33223211231 its reverse (13211232233), we get a palindrome (46434443464).

The spelling of 33223211231 in words is "thirty-three billion, two hundred twenty-three million, two hundred eleven thousand, two hundred thirty-one".