12021202222222 has 4 divisors (see below), whose sum is σ = 18031803333336. Its totient is φ = 6010601111110.

The previous prime is 12021202222207. The next prime is 12021202222307. The reversal of 12021202222222 is 22222220212021.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

12021202222222 is a modest number, since divided by 2222222 gives 1202120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12021202222193 and 12021202222202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005300555554 + ... + 3005300555557.

It is an arithmetic number, because the mean of its divisors is an integer number (4507950833334).

Almost surely, 2^{12021202222222} is an apocalyptic number.

12021202222222 is a deficient number, since it is larger than the sum of its proper divisors (6010601111114).

12021202222222 is an equidigital number, since it uses as much as digits as its factorization.

12021202222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010601111113.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12021202222222 its reverse (22222220212021), we get a palindrome (34243422434243).

The spelling of 12021202222222 in words is "twelve trillion, twenty-one billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-two".