1222221202022 has 32 divisors (see below), whose sum is σ = 1879514399232. Its totient is φ = 595817347104.

The previous prime is 1222221202021. The next prime is 1222221202043. The reversal of 1222221202022 is 2202021222221.

It is a junction number, because it is equal to n+sod(n) for n = 1222221201985 and 1222221202003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222221202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157559768 + ... + 157567524.

It is an arithmetic number, because the mean of its divisors is an integer number (58734824976).

Almost surely, 2^{1222221202022} is an apocalyptic number.

1222221202022 is a deficient number, since it is larger than the sum of its proper divisors (657293197210).

1222221202022 is a wasteful number, since it uses less digits than its factorization.

1222221202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14012.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1222221202022 its reverse (2202021222221), we get a palindrome (3424242424243).

The spelling of 1222221202022 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred two thousand, twenty-two".