121210301112312 has 32 divisors (see below), whose sum is σ = 303135824051280. Its totient is φ = 40388757534720.

The previous prime is 121210301112293. The next prime is 121210301112317. The reversal of 121210301112312 is 213211103012121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210301112317) 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, 917193139 + ... + 917325282.

Almost surely, 2^{121210301112312} is an apocalyptic number.

121210301112312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121210301112312 is an abundant number, since it is smaller than the sum of its proper divisors (181925522938968).

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

121210301112312 is a wasteful number, since it uses less digits than its factorization.

121210301112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834521183 (or 1834521179 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121210301112312 its reverse (213211103012121), we get a palindrome (334421404124433).

The spelling of 121210301112312 in words is "one hundred twenty-one trillion, two hundred ten billion, three hundred one million, one hundred twelve thousand, three hundred twelve".