12220210221222 has 64 divisors (see below), whose sum is σ = 26798594226624. Its totient is φ = 3699792445440.

The previous prime is 12220210221221. The next prime is 12220210221257. The reversal of 12220210221222 is 22212201202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210221221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18198843 + ... + 18858374.

It is an arithmetic number, because the mean of its divisors is an integer number (418728034791).

Almost surely, 2^{12220210221222} is an apocalyptic number.

12220210221222 is an abundant number, since it is smaller than the sum of its proper divisors (14578384005402).

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

12220210221222 is a wasteful number, since it uses less digits than its factorization.

12220210221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37057353.

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

Adding to 12220210221222 its reverse (22212201202221), we get a palindrome (34432411423443).

The spelling of 12220210221222 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".