12211221020222 has 16 divisors (see below), whose sum is σ = 20933942095872. Its totient is φ = 5233275350520.

The previous prime is 12211221020197. The next prime is 12211221020227. The reversal of 12211221020222 is 22202012211221.

It is a super-2 number, since 2×12211221020222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211221020194 and 12211221020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211221020227) 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, 8033054 + ... + 9431457.

It is an arithmetic number, because the mean of its divisors is an integer number (1308371380992).

Almost surely, 2^{12211221020222} is an apocalyptic number.

12211221020222 is a deficient number, since it is larger than the sum of its proper divisors (8722721075650).

12211221020222 is a wasteful number, since it uses less digits than its factorization.

12211221020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17514463.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12211221020222 its reverse (22202012211221), we get a palindrome (34413233231443).

The spelling of 12211221020222 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-one million, twenty thousand, two hundred twenty-two".