22202222121212 has 48 divisors (see below), whose sum is σ = 44687759719680. Its totient is φ = 9454708560000.

The previous prime is 22202222121193. The next prime is 22202222121403. The reversal of 22202222121212 is 21212122220222.

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 15 ways as a sum of consecutive naturals, for example, 825089 + ... + 6714552.

It is an arithmetic number, because the mean of its divisors is an integer number (930994994160).

Almost surely, 2^{22202222121212} is an apocalyptic number.

It is an amenable number.

22202222121212 is an abundant number, since it is smaller than the sum of its proper divisors (22485537598468).

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

22202222121212 is a wasteful number, since it uses less digits than its factorization.

22202222121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540322 (or 7540320 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22202222121212 its reverse (21212122220222), we get a palindrome (43414344341434).

It can be divided in two parts, 2220222 and 2121212, that added together give a palindrome (4341434).

The spelling of 22202222121212 in words is "twenty-two trillion, two hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".