33420222231 has 16 divisors (see below), whose sum is σ = 49083191040. Its totient is φ = 20058030720.

The previous prime is 33420222221. The next prime is 33420222233. The reversal of 33420222231 is 13222202433.

It is not a de Polignac number, because 33420222231 - 2⁷ = 33420222103 is a prime.

It is a super-2 number, since 2×33420222231² (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 (33420222233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4912786 + ... + 4919583.

It is an arithmetic number, because the mean of its divisors is an integer number (3067699440).

Almost surely, 2^33420222231 is an apocalyptic number.

33420222231 is a deficient number, since it is larger than the sum of its proper divisors (15662968809).

33420222231 is a wasteful number, since it uses less digits than its factorization.

33420222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9832486.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 33420222231 its reverse (13222202433), we get a palindrome (46642424664).

The spelling of 33420222231 in words is "thirty-three billion, four hundred twenty million, two hundred twenty-two thousand, two hundred thirty-one".