133012112121 has 24 divisors (see below), whose sum is σ = 227707980864. Its totient is φ = 76006920240.

The previous prime is 133012112117. The next prime is 133012112183. The reversal of 133012112121 is 121211210331.

133012112121 is a `hidden beast` number, since 1 + 330 + 1 + 211 + 2 + 121 = 666.

It is not a de Polignac number, because 133012112121 - 2² = 133012112117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133012112094 and 133012112103.

It is not an unprimeable number, because it can be changed into a prime (133012111121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39096510 + ... + 39099911.

It is an arithmetic number, because the mean of its divisors is an integer number (9487832536).

Almost surely, 2^133012112121 is an apocalyptic number.

It is an amenable number.

133012112121 is a deficient number, since it is larger than the sum of its proper divisors (94695868743).

133012112121 is an frugal number, since it uses more digits than its factorization.

133012112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78196443 (or 78196431 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 133012112121 its reverse (121211210331), we get a palindrome (254223322452).

The spelling of 133012112121 in words is "one hundred thirty-three billion, twelve million, one hundred twelve thousand, one hundred twenty-one".