33312222406 has 24 divisors (see below), whose sum is σ = 50385081600. Its totient is φ = 16518095616.

The previous prime is 33312222403. The next prime is 33312222407. The reversal of 33312222406 is 60422221333.

It is a super-2 number, since 2×33312222406² (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 (33312222403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86976891 + ... + 86977273.

It is an arithmetic number, because the mean of its divisors is an integer number (2099378400).

Almost surely, 2^33312222406 is an apocalyptic number.

33312222406 is a deficient number, since it is larger than the sum of its proper divisors (17072859194).

33312222406 is an equidigital number, since it uses as much as digits as its factorization.

33312222406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 33312222406 its reverse (60422221333), we get a palindrome (93734443739).

The spelling of 33312222406 in words is "thirty-three billion, three hundred twelve million, two hundred twenty-two thousand, four hundred six".