33566421222 has 40 divisors (see below), whose sum is σ = 79637986296. Its totient is φ = 10530641088.

The previous prime is 33566421173. The next prime is 33566421227. The reversal of 33566421222 is 22212466533.

33566421222 is a `hidden beast` number, since 3 + 3 + 5 + 6 + 6 + 421 + 222 = 666.

It is a super-2 number, since 2×33566421222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33566421227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6091368 + ... + 6096875.

Almost surely, 2^33566421222 is an apocalyptic number.

33566421222 is an abundant number, since it is smaller than the sum of its proper divisors (46071565074).

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

33566421222 is a wasteful number, since it uses less digits than its factorization.

33566421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12188274 (or 12188265 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 33566421222 its reverse (22212466533), we get a palindrome (55778887755).

The spelling of 33566421222 in words is "thirty-three billion, five hundred sixty-six million, four hundred twenty-one thousand, two hundred twenty-two".