33222222012 has 24 divisors (see below), whose sum is σ = 88592592256. Its totient is φ = 9492063408.

The previous prime is 33222221971. The next prime is 33222222029. The reversal of 33222222012 is 21022222233.

It is a super-2 number, since 2×33222222012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 33222222012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197751238 + ... + 197751405.

Almost surely, 2^33222222012 is an apocalyptic number.

It is an amenable number.

33222222012 is an abundant number, since it is smaller than the sum of its proper divisors (55370370244).

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

33222222012 is a wasteful number, since it uses less digits than its factorization.

33222222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395502657 (or 395502655 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33222222012 its reverse (21022222233), we get a palindrome (54244444245).

The spelling of 33222222012 in words is "thirty-three billion, two hundred twenty-two million, two hundred twenty-two thousand, twelve".