133231122 has 16 divisors (see below), whose sum is σ = 296069280. Its totient is φ = 44410356.

The previous prime is 133231121. The next prime is 133231129. The reversal of 133231122 is 221132331.

133231122 is a `hidden beast` number, since 1 + 332 + 311 + 22 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 133231095 and 133231104.

It is not an unprimeable number, because it can be changed into a prime (133231121) 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, 1233568 + ... + 1233675.

It is an arithmetic number, because the mean of its divisors is an integer number (18504330).

Almost surely, 2^133231122 is an apocalyptic number.

133231122 is an abundant number, since it is smaller than the sum of its proper divisors (162838158).

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

133231122 is a wasteful number, since it uses less digits than its factorization.

133231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467254 (or 2467248 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 133231122 is about 11542.5786547028. The cubic root of 133231122 is about 510.7423790428.

Adding to 133231122 its reverse (221132331), we get a palindrome (354363453).

The spelling of 133231122 in words is "one hundred thirty-three million, two hundred thirty-one thousand, one hundred twenty-two".