133333222 has 16 divisors (see below), whose sum is σ = 229665600. Its totient is φ = 57416040.

The previous prime is 133333199. The next prime is 133333223. The reversal of 133333222 is 222333331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 133333193 and 133333202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333223) 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, 159072 + ... + 159907.

It is an arithmetic number, because the mean of its divisors is an integer number (14354100).

Almost surely, 2^133333222 is an apocalyptic number.

133333222 is a deficient number, since it is larger than the sum of its proper divisors (96332378).

133333222 is a wasteful number, since it uses less digits than its factorization.

133333222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319011.

The product of its digits is 1944, while the sum is 22.

The square root of 133333222 is about 11547.0005629168. Note that the first 3 decimals coincide. The cubic root of 133333222 is about 510.8728127360.

Adding to 133333222 its reverse (222333331), we get a palindrome (355666553).

The spelling of 133333222 in words is "one hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty-two".