12212221220022 has 8 divisors (see below), whose sum is σ = 24424442440056. Its totient is φ = 4070740406672.

The previous prime is 12212221219999. The next prime is 12212221220029. The reversal of 12212221220022 is 22002212221221.

12212221220022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12212221220022 is an admirable number.

It is a super-2 number, since 2×12212221220022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212221220029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017685101663 + ... + 1017685101674.

It is an arithmetic number, because the mean of its divisors is an integer number (3053055305007).

Almost surely, 2^{12212221220022} is an apocalyptic number.

12212221220022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12212221220022 is a wasteful number, since it uses less digits than its factorization.

12212221220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035370203342.

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

Adding to 12212221220022 its reverse (22002212221221), we get a palindrome (34214433441243).

The spelling of 12212221220022 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, twenty-two".