12210102312 has 32 divisors (see below), whose sum is σ = 30955193280. Its totient is φ = 4012709120.

The previous prime is 12210102239. The next prime is 12210102323. The reversal of 12210102312 is 21320101221.

It is a junction number, because it is equal to n+sod(n) for n = 12210102291 and 12210102300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3581073 + ... + 3584480.

It is an arithmetic number, because the mean of its divisors is an integer number (967349790).

Almost surely, 2^12210102312 is an apocalyptic number.

12210102312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210102312 is an abundant number, since it is smaller than the sum of its proper divisors (18745090968).

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

12210102312 is a wasteful number, since it uses less digits than its factorization.

12210102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165633 (or 7165629 counting only the distinct ones).

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

Adding to 12210102312 its reverse (21320101221), we get a palindrome (33530203533).

The spelling of 12210102312 in words is "twelve billion, two hundred ten million, one hundred two thousand, three hundred twelve".