33131213222 has 8 divisors (see below), whose sum is σ = 49701188136. Its totient is φ = 16564150512.

The previous prime is 33131213179. The next prime is 33131213231. The reversal of 33131213222 is 22231213133.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699383 + ... + 745250.

It is an arithmetic number, because the mean of its divisors is an integer number (6212648517).

Almost surely, 2^33131213222 is an apocalyptic number.

33131213222 is a deficient number, since it is larger than the sum of its proper divisors (16569974914).

33131213222 is a wasteful number, since it uses less digits than its factorization.

33131213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456102.

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

Adding to 33131213222 its reverse (22231213133), we get a palindrome (55362426355).

The spelling of 33131213222 in words is "thirty-three billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred twenty-two".