33012222212 has 6 divisors (see below), whose sum is σ = 57771388878. Its totient is φ = 16506111104.

The previous prime is 33012222209. The next prime is 33012222241. The reversal of 33012222212 is 21222221033.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30379095616 + 2633126596 = 174296^2 + 51314^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126527773 + ... + 4126527780.

It is an arithmetic number, because the mean of its divisors is an integer number (9628564813).

Almost surely, 2^33012222212 is an apocalyptic number.

It is an amenable number.

33012222212 is a deficient number, since it is larger than the sum of its proper divisors (24759166666).

33012222212 is a wasteful number, since it uses less digits than its factorization.

33012222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253055557 (or 8253055555 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 33012222212 its reverse (21222221033), we get a palindrome (54234443245).

The spelling of 33012222212 in words is "thirty-three billion, twelve million, two hundred twenty-two thousand, two hundred twelve".