133388222 has 24 divisors (see below), whose sum is σ = 232869168. Its totient is φ = 57062720.

The previous prime is 133388207. The next prime is 133388249. The reversal of 133388222 is 222883331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12098 + ... + 20325.

It is an arithmetic number, because the mean of its divisors is an integer number (9702882).

Almost surely, 2^133388222 is an apocalyptic number.

133388222 is a deficient number, since it is larger than the sum of its proper divisors (99480946).

133388222 is a wasteful number, since it uses less digits than its factorization.

133388222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32464 (or 32453 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 133388222 is about 11549.3818882224. The cubic root of 133388222 is about 510.9430481499.

The spelling of 133388222 in words is "one hundred thirty-three million, three hundred eighty-eight thousand, two hundred twenty-two".