12212201202222 has 32 divisors (see below), whose sum is σ = 27956349522432. Its totient is φ = 3483856996704.

The previous prime is 12212201202221. The next prime is 12212201202263. The reversal of 12212201202222 is 22220210221221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212201202221) 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, 222611698 + ... + 222666549.

It is an arithmetic number, because the mean of its divisors is an integer number (873635922576).

Almost surely, 2^{12212201202222} is an apocalyptic number.

12212201202222 is an abundant number, since it is smaller than the sum of its proper divisors (15744148320210).

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

12212201202222 is a wasteful number, since it uses less digits than its factorization.

12212201202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445278912.

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

Adding to 12212201202222 its reverse (22220210221221), we get a palindrome (34432411423443).

The spelling of 12212201202222 in words is "twelve trillion, two hundred twelve billion, two hundred one million, two hundred two thousand, two hundred twenty-two".