12022201002221 has 8 divisors (see below), whose sum is σ = 12436824351000. Its totient is φ = 11607581966400.

The previous prime is 12022201002139. The next prime is 12022201002239. The reversal of 12022201002221 is 12220010222021.

It is a happy number.

12022201002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 803687148196 + 11218513854025 = 896486^2 + 3349405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12022201002221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022201002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022201002121) 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, 5215571 + ... + 7158671.

It is an arithmetic number, because the mean of its divisors is an integer number (1554603043875).

Almost surely, 2^{12022201002221} is an apocalyptic number.

It is an amenable number.

12022201002221 is a deficient number, since it is larger than the sum of its proper divisors (414623348779).

12022201002221 is a wasteful number, since it uses less digits than its factorization.

12022201002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156479.

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

Adding to 12022201002221 its reverse (12220010222021), we get a palindrome (24242211224242).

The spelling of 12022201002221 in words is "twelve trillion, twenty-two billion, two hundred one million, two thousand, two hundred twenty-one".