33312222132 has 144 divisors (see below), whose sum is σ = 95075430912. Its totient is φ = 9033984960.

The previous prime is 33312222127. The next prime is 33312222149. The reversal of 33312222132 is 23122221333.

It is a super-2 number, since 2×33312222132² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1762243 + ... + 1781045.

It is an arithmetic number, because the mean of its divisors is an integer number (660246048).

Almost surely, 2^33312222132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33312222132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47537715456).

33312222132 is an abundant number, since it is smaller than the sum of its proper divisors (61763208780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33312222132 is a wasteful number, since it uses less digits than its factorization.

33312222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18978 (or 18969 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 33312222132 its reverse (23122221333), we get a palindrome (56434443465).

The spelling of 33312222132 in words is "thirty-three billion, three hundred twelve million, two hundred twenty-two thousand, one hundred thirty-two".