133222268 has 12 divisors (see below), whose sum is σ = 246853152. Its totient is φ = 62692800.

The previous prime is 133222267. The next prime is 133222273. The reversal of 133222268 is 862222331.

It is a self number, because there is not a number n which added to its sum of digits gives 133222268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133222261) 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, 979508 + ... + 979643.

It is an arithmetic number, because the mean of its divisors is an integer number (20571096).

Almost surely, 2^133222268 is an apocalyptic number.

It is an amenable number.

133222268 is a deficient number, since it is larger than the sum of its proper divisors (113630884).

133222268 is a wasteful number, since it uses less digits than its factorization.

133222268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959172 (or 1959170 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 133222268 is about 11542.1951118494. The cubic root of 133222268 is about 510.7310648365.

Adding to 133222268 its reverse (862222331), we get a palindrome (995444599).

The spelling of 133222268 in words is "one hundred thirty-three million, two hundred twenty-two thousand, two hundred sixty-eight".