12101202312 has 32 divisors (see below), whose sum is σ = 30303379680. Its totient is φ = 4027017600.

The previous prime is 12101202307. The next prime is 12101202319. The reversal of 12101202312 is 21320210121.

It is a junction number, because it is equal to n+sod(n) for n = 12101202291 and 12101202300.

It is not an unprimeable number, because it can be changed into a prime (12101202319) 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, 405058 + ... + 433905.

It is an arithmetic number, because the mean of its divisors is an integer number (946980615).

Almost surely, 2^12101202312 is an apocalyptic number.

12101202312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101202312 is an abundant number, since it is smaller than the sum of its proper divisors (18202177368).

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

12101202312 is a wasteful number, since it uses less digits than its factorization.

12101202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839573 (or 839569 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12101202312 its reverse (21320210121), we get a palindrome (33421412433).

The spelling of 12101202312 in words is "twelve billion, one hundred one million, two hundred two thousand, three hundred twelve".