133402222 has 4 divisors (see below), whose sum is σ = 200103336. Its totient is φ = 66701110.

The previous prime is 133402183. The next prime is 133402223. The reversal of 133402222 is 222204331.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133402222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133402223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33350554 + ... + 33350557.

It is an arithmetic number, because the mean of its divisors is an integer number (50025834).

Almost surely, 2^133402222 is an apocalyptic number.

133402222 is a deficient number, since it is larger than the sum of its proper divisors (66701114).

133402222 is an equidigital number, since it uses as much as digits as its factorization.

133402222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66701113.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 133402222 is about 11549.9879653617. The cubic root of 133402222 is about 510.9609231725.

Adding to 133402222 its reverse (222204331), we get a palindrome (355606553).

The spelling of 133402222 in words is "one hundred thirty-three million, four hundred two thousand, two hundred twenty-two".