33212222011 has 4 divisors (see below), whose sum is σ = 33451159000. Its totient is φ = 32973285024.

The previous prime is 33212221979. The next prime is 33212222033. The reversal of 33212222011 is 11022221233.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33212222011 - 2⁵ = 33212221979 is a prime.

It is a super-2 number, since 2×33212222011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33212222011.

It is not an unprimeable number, because it can be changed into a prime (33212222311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119468286 + ... + 119468563.

It is an arithmetic number, because the mean of its divisors is an integer number (8362789750).

Almost surely, 2^33212222011 is an apocalyptic number.

33212222011 is a deficient number, since it is larger than the sum of its proper divisors (238936989).

33212222011 is a wasteful number, since it uses less digits than its factorization.

33212222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238936988.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 33212222011 its reverse (11022221233), we get a palindrome (44234443244).

It can be divided in two parts, 3321222 and 2011, that added together give a palindrome (3323233).

The spelling of 33212222011 in words is "thirty-three billion, two hundred twelve million, two hundred twenty-two thousand, eleven".