12212022221000 has 64 divisors (see below), whose sum is σ = 32658436586880. Its totient is φ = 4186979044800.

The previous prime is 12212022220997. The next prime is 12212022221029. The reversal of 12212022221000 is 12222021221.

It is a happy number.

12212022221000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12212022221000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872280302 + ... + 872294301.

It is an arithmetic number, because the mean of its divisors is an integer number (510288071670).

Almost surely, 2^{12212022221000} is an apocalyptic number.

12212022221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212022221000 is an abundant number, since it is smaller than the sum of its proper divisors (20446414365880).

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

12212022221000 is a wasteful number, since it uses less digits than its factorization.

12212022221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744574631 (or 1744574617 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12212022221000 its reverse (12222021221), we get a palindrome (12224244242221).

The spelling of 12212022221000 in words is "twelve trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand".