33222012 has 24 divisors (see below), whose sum is σ = 82078416. Its totient is φ = 10422528.

The previous prime is 33221999. The next prime is 33222047. The reversal of 33222012 is 21022233.

It is a super-2 number, since 2×33222012² = 2207404162656288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221982 and 33222000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81223 + ... + 81630.

It is an arithmetic number, because the mean of its divisors is an integer number (3419934).

Almost surely, 2^33222012 is an apocalyptic number.

It is an amenable number.

33222012 is an abundant number, since it is smaller than the sum of its proper divisors (48856404).

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

33222012 is a wasteful number, since it uses less digits than its factorization.

33222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162877 (or 162875 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 33222012 is about 5763.8539190372. The cubic root of 33222012 is about 321.4711300826.

Adding to 33222012 its reverse (21022233), we get a palindrome (54244245).

The spelling of 33222012 in words is "thirty-three million, two hundred twenty-two thousand, twelve".