33112212030 has 48 divisors (see below), whose sum is σ = 86126732640. Its totient is φ = 8826335424.

The previous prime is 33112212011. The next prime is 33112212031. The reversal of 33112212030 is 3021221133.

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

It is a junction number, because it is equal to n+sod(n) for n = 33112211994 and 33112212012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112212031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151776 + ... + 298764.

It is an arithmetic number, because the mean of its divisors is an integer number (1794306930).

Almost surely, 2^33112212030 is an apocalyptic number.

33112212030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33112212030 is an abundant number, since it is smaller than the sum of its proper divisors (53014520610).

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

33112212030 is a wasteful number, since it uses less digits than its factorization.

33112212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149505 (or 149502 counting only the distinct ones).

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

Adding to 33112212030 its reverse (3021221133), we get a palindrome (36133433163).

The spelling of 33112212030 in words is "thirty-three billion, one hundred twelve million, two hundred twelve thousand, thirty".