33012100000 has 144 divisors (see below), whose sum is σ = 88623515232. Its totient is φ = 12004000000.

The previous prime is 33012099997. The next prime is 33012100049. The reversal of 33012100000 is 121033.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 33012100000.

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, 1084995 + ... + 1115005.

It is an arithmetic number, because the mean of its divisors is an integer number (615441078).

Almost surely, 2^33012100000 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 33012100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44311757616).

33012100000 is an abundant number, since it is smaller than the sum of its proper divisors (55611415232).

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

33012100000 is an equidigital number, since it uses as much as digits as its factorization.

33012100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30057 (or 30029 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 33012100000 its reverse (121033), we get a palindrome (33012221033).

The spelling of 33012100000 in words is "thirty-three billion, twelve million, one hundred thousand".