22212244221222 has 16 divisors (see below), whose sum is σ = 48463078300992. Its totient is φ = 6730983097320.

The previous prime is 22212244221163. The next prime is 22212244221241.

22212244221222 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22212244221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168274577368 + ... + 168274577499.

It is an arithmetic number, because the mean of its divisors is an integer number (3028942393812).

Almost surely, 2^{22212244221222} is an apocalyptic number.

22212244221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22212244221222 is an abundant number, since it is smaller than the sum of its proper divisors (26250834079770).

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

22212244221222 is a wasteful number, since it uses less digits than its factorization.

22212244221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336549154883.

The product of its digits is 16384, while the sum is 30.

It can be divided in two parts, 2221224 and 4221222, that added together give a palindrome (6442446).

The spelling of 22212244221222 in words is "twenty-two trillion, two hundred twelve billion, two hundred forty-four million, two hundred twenty-one thousand, two hundred twenty-two".