33112231000 has 128 divisors (see below), whose sum is σ = 81779256000. Its totient is φ = 12514176000.

The previous prime is 33112230979. The next prime is 33112231063. The reversal of 33112231000 is 13221133.

It is a super-2 number, since 2×33112231000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7768870 + ... + 7773130.

Almost surely, 2^33112231000 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 33112231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40889628000).

33112231000 is an abundant number, since it is smaller than the sum of its proper divisors (48667025000).

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

33112231000 is a wasteful number, since it uses less digits than its factorization.

33112231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710 (or 4696 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 33112231000 its reverse (13221133), we get a palindrome (33125452133).

The spelling of 33112231000 in words is "thirty-three billion, one hundred twelve million, two hundred thirty-one thousand".