33222012100 has 36 divisors (see below), whose sum is σ = 72319254084. Its totient is φ = 13246871680.

The previous prime is 33222012077. The next prime is 33222012137. The reversal of 33222012100 is 121022233.

It can be written as a sum of positive squares in 6 ways, for example, as 9165381696 + 24056630404 = 95736^2 + 155102^2 .

It is a super-2 number, since 2×33222012100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492307 + ... + 555706.

It is an arithmetic number, because the mean of its divisors is an integer number (2008868169).

Almost surely, 2^33222012100 is an apocalyptic number.

It is an amenable number.

33222012100 is an abundant number, since it is smaller than the sum of its proper divisors (39097241984).

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

33222012100 is a wasteful number, since it uses less digits than its factorization.

33222012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048344 (or 1048337 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 33222012100 its reverse (121022233), we get a palindrome (33343034333).

The spelling of 33222012100 in words is "thirty-three billion, two hundred twenty-two million, twelve thousand, one hundred".