33221112212 has 24 divisors (see below), whose sum is σ = 58995352416. Its totient is φ = 16366372128.

The previous prime is 33221112181. The next prime is 33221112257. The reversal of 33221112212 is 21221112233.

It is a super-2 number, since 2×33221112212² (a number of 22 digits) contains 22 as substring.

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, 10298 + ... + 257969.

It is an arithmetic number, because the mean of its divisors is an integer number (2458139684).

Almost surely, 2^33221112212 is an apocalyptic number.

It is an amenable number.

33221112212 is a deficient number, since it is larger than the sum of its proper divisors (25774240204).

33221112212 is a wasteful number, since it uses less digits than its factorization.

33221112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268727 (or 268725 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 33221112212 its reverse (21221112233), we get a palindrome (54442224445).

The spelling of 33221112212 in words is "thirty-three billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twelve".