133197222 has 16 divisors (see below), whose sum is σ = 269388720. Its totient is φ = 43900032.

The previous prime is 133197217. The next prime is 133197223. The reversal of 133197222 is 222791331.

It is a self number, because there is not a number n which added to its sum of digits gives 133197222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133197223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124183 + ... + 125250.

It is an arithmetic number, because the mean of its divisors is an integer number (16836795).

Almost surely, 2^133197222 is an apocalyptic number.

133197222 is an abundant number, since it is smaller than the sum of its proper divisors (136191498).

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

133197222 is a wasteful number, since it uses less digits than its factorization.

133197222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249527.

The product of its digits is 4536, while the sum is 30.

The square root of 133197222 is about 11541.1100852561. The cubic root of 133197222 is about 510.6990567442.

The spelling of 133197222 in words is "one hundred thirty-three million, one hundred ninety-seven thousand, two hundred twenty-two".