133122210 has 32 divisors (see below), whose sum is σ = 344070720. Its totient is φ = 32768448.

The previous prime is 133122193. The next prime is 133122217. The reversal of 133122210 is 12221331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 133122210.

It is not an unprimeable number, because it can be changed into a prime (133122217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170280 + ... + 171059.

It is an arithmetic number, because the mean of its divisors is an integer number (10752210).

Almost surely, 2^133122210 is an apocalyptic number.

133122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133122210 is an abundant number, since it is smaller than the sum of its proper divisors (210948510).

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

133122210 is a wasteful number, since it uses less digits than its factorization.

133122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341362.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 133122210 is about 11537.8598535430. The cubic root of 133122210 is about 510.6031694810.

Adding to 133122210 its reverse (12221331), we get a palindrome (145343541).

The spelling of 133122210 in words is "one hundred thirty-three million, one hundred twenty-two thousand, two hundred ten".