133320222 has 64 divisors (see below), whose sum is σ = 358525440. Its totient is φ = 35849088.

The previous prime is 133320211. The next prime is 133320227. The reversal of 133320222 is 222023331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 133320195 and 133320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133320227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3948 + ... + 16799.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^133320222 is an apocalyptic number.

133320222 is an abundant number, since it is smaller than the sum of its proper divisors (225205218).

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

133320222 is a wasteful number, since it uses less digits than its factorization.

133320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20782 (or 20776 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 133320222 is about 11546.4376324475. The cubic root of 133320222 is about 510.8562088161.

Adding to 133320222 its reverse (222023331), we get a palindrome (355343553).

The spelling of 133320222 in words is "one hundred thirty-three million, three hundred twenty thousand, two hundred twenty-two".