12220101312 has 28 divisors (see below), whose sum is σ = 32332351896. Its totient is φ = 4073367040.

The previous prime is 12220101277. The next prime is 12220101323. The reversal of 12220101312 is 21310102221.

It is a junction number, because it is equal to n+sod(n) for n = 12220101291 and 12220101300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31822989 + ... + 31823372.

Almost surely, 2^12220101312 is an apocalyptic number.

12220101312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220101312 is an abundant number, since it is smaller than the sum of its proper divisors (20112250584).

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

12220101312 is an equidigital number, since it uses as much as digits as its factorization.

12220101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63646376 (or 63646366 counting only the distinct ones).

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

Adding to 12220101312 its reverse (21310102221), we get a palindrome (33530203533).

Subtracting 12220101312 from its reverse (21310102221), we obtain a palindrome (9090000909).

The spelling of 12220101312 in words is "twelve billion, two hundred twenty million, one hundred one thousand, three hundred twelve".