133001212 has 24 divisors (see below), whose sum is σ = 239283072. Its totient is φ = 64646400.

The previous prime is 133001207. The next prime is 133001233. The reversal of 133001212 is 212100331.

It is a junction number, because it is equal to n+sod(n) for n = 133001192 and 133001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50037 + ... + 52627.

It is an arithmetic number, because the mean of its divisors is an integer number (9970128).

Almost surely, 2^133001212 is an apocalyptic number.

It is an amenable number.

133001212 is a deficient number, since it is larger than the sum of its proper divisors (106281860).

133001212 is a wasteful number, since it uses less digits than its factorization.

133001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 133001212 is about 11532.6151414152. The cubic root of 133001212 is about 510.4484227258.

Adding to 133001212 its reverse (212100331), we get a palindrome (345101543).

The spelling of 133001212 in words is "one hundred thirty-three million, one thousand, two hundred twelve".