121612012 has 12 divisors (see below), whose sum is σ = 214250400. Its totient is φ = 60397616.

The previous prime is 121612009. The next prime is 121612013. The reversal of 121612012 is 210216121.

It is not an unprimeable number, because it can be changed into a prime (121612013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101428 + ... + 102619.

It is an arithmetic number, because the mean of its divisors is an integer number (17854200).

Almost surely, 2^121612012 is an apocalyptic number.

It is an amenable number.

121612012 is a deficient number, since it is larger than the sum of its proper divisors (92638388).

121612012 is a wasteful number, since it uses less digits than its factorization.

121612012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204200 (or 204198 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 121612012 is about 11027.7836395171. The cubic root of 121612012 is about 495.4412444846.

Adding to 121612012 its reverse (210216121), we get a palindrome (331828133).

The spelling of 121612012 in words is "one hundred twenty-one million, six hundred twelve thousand, twelve".