121123132200012 has 36 divisors (see below), whose sum is σ = 287492011766456. Its totient is φ = 39690065904960.

The previous prime is 121123132200011. The next prime is 121123132200017. The reversal of 121123132200012 is 210002231321121.

It is not an unprimeable number, because it can be changed into a prime (121123132200011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1449770689 + ... + 1449854232.

Almost surely, 2^{121123132200012} is an apocalyptic number.

121123132200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121123132200012 is an abundant number, since it is smaller than the sum of its proper divisors (166368879566444).

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

121123132200012 is a wasteful number, since it uses less digits than its factorization.

121123132200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899625046 (or 2899624985 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121123132200012 its reverse (210002231321121), we get a palindrome (331125363521133).

The spelling of 121123132200012 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred thirty-two million, two hundred thousand, twelve".