2221202212222 has 16 divisors (see below), whose sum is σ = 3807797471712. Its totient is φ = 951938242560.

The previous prime is 2221202212189. The next prime is 2221202212247. The reversal of 2221202212222 is 2222122021222.

It is a junction number, because it is equal to n+sod(n) for n = 2221202212193 and 2221202212202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2819722 + ... + 3520402.

It is an arithmetic number, because the mean of its divisors is an integer number (237987341982).

Almost surely, 2^{2221202212222} is an apocalyptic number.

2221202212222 is a deficient number, since it is larger than the sum of its proper divisors (1586595259490).

2221202212222 is a wasteful number, since it uses less digits than its factorization.

2221202212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927123.

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

Adding to 2221202212222 its reverse (2222122021222), we get a palindrome (4443324233444).

It can be divided in two parts, 222120 and 2212222, that added together give a palindrome (2434342).

The spelling of 2221202212222 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred twenty-two".