33221132231 has 16 divisors (see below), whose sum is σ = 38237563200. Its totient is φ = 28272499200.

The previous prime is 33221132221. The next prime is 33221132257. The reversal of 33221132231 is 13223112233.

It is a cyclic number.

It is not a de Polignac number, because 33221132231 - 2²² = 33216937927 is a prime.

It is a super-2 number, since 2×33221132231² (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 = 33221132197 and 33221132206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221132221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3350381 + ... + 3360281.

It is an arithmetic number, because the mean of its divisors is an integer number (2389847700).

Almost surely, 2^33221132231 is an apocalyptic number.

33221132231 is a deficient number, since it is larger than the sum of its proper divisors (5016430969).

33221132231 is a wasteful number, since it uses less digits than its factorization.

33221132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13274.

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

Adding to 33221132231 its reverse (13223112233), we get a palindrome (46444244464).

The spelling of 33221132231 in words is "thirty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty-one".