2221212212022 has 16 divisors (see below), whose sum is σ = 4545736620480. Its totient is φ = 723185371272.

The previous prime is 2221212212003. The next prime is 2221212212047. The reversal of 2221212212022 is 2202122121222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221212212022.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4304674572 + ... + 4304675087.

It is an arithmetic number, because the mean of its divisors is an integer number (284108538780).

Almost surely, 2^{2221212212022} is an apocalyptic number.

2221212212022 is an abundant number, since it is smaller than the sum of its proper divisors (2324524408458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221212212022 is a wasteful number, since it uses less digits than its factorization.

2221212212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8609349707.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2221212212022 its reverse (2202122121222), we get a palindrome (4423334333244).

The spelling of 2221212212022 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, twenty-two".