12022221000312 has 32 divisors (see below), whose sum is σ = 33395058334800. Its totient is φ = 4007407000032.

The previous prime is 12022221000277. The next prime is 12022221000343. The reversal of 12022221000312 is 21300012222021.

12022221000312 is a `hidden beast` number, since 120 + 2 + 22 + 210 + 0 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27829215063 + ... + 27829215494.

Almost surely, 2^{12022221000312} is an apocalyptic number.

12022221000312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12022221000312 is an abundant number, since it is smaller than the sum of its proper divisors (21372837334488).

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

12022221000312 is a wasteful number, since it uses less digits than its factorization.

12022221000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55658430572 (or 55658430562 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12022221000312 its reverse (21300012222021), we get a palindrome (33322233222333).

The spelling of 12022221000312 in words is "twelve trillion, twenty-two billion, two hundred twenty-one million, three hundred twelve", and thus it is an aban number.