12210222012222 has 32 divisors (see below), whose sum is σ = 26303705809920. Its totient is φ = 3756310518240.

The previous prime is 12210222012161. The next prime is 12210222012227. The reversal of 12210222012222 is 22221022201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210222012227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13751554 + ... + 14612517.

It is an arithmetic number, because the mean of its divisors is an integer number (821990806560).

Almost surely, 2^{12210222012222} is an apocalyptic number.

12210222012222 is an abundant number, since it is smaller than the sum of its proper divisors (14093483797698).

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

12210222012222 is a wasteful number, since it uses less digits than its factorization.

12210222012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28369608.

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

Adding to 12210222012222 its reverse (22221022201221), we get a palindrome (34431244213443).

The spelling of 12210222012222 in words is "twelve trillion, two hundred ten billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".