33102213012 has 72 divisors (see below), whose sum is σ = 91400793120. Its totient is φ = 10017904320.

The previous prime is 33102213007. The next prime is 33102213031. The reversal of 33102213012 is 21031220133.

It is a super-2 number, since 2×33102213012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252039 + ... + 360177.

It is an arithmetic number, because the mean of its divisors is an integer number (1269455460).

Almost surely, 2^33102213012 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 33102213012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45700396560).

33102213012 is an abundant number, since it is smaller than the sum of its proper divisors (58298580108).

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

33102213012 is a wasteful number, since it uses less digits than its factorization.

33102213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108933 (or 108928 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 33102213012 its reverse (21031220133), we get a palindrome (54133433145).

The spelling of 33102213012 in words is "thirty-three billion, one hundred two million, two hundred thirteen thousand, twelve".