12212202210 has 64 divisors (see below), whose sum is σ = 31870395648. Its totient is φ = 2976885504.

The previous prime is 12212202181. The next prime is 12212202239. The reversal of 12212202210 is 1220221221.

It is an interprime number because it is at equal distance from previous prime (12212202181) and next prime (12212202239).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12212202210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111837 + ... + 192176.

It is an arithmetic number, because the mean of its divisors is an integer number (497974932).

Almost surely, 2^12212202210 is an apocalyptic number.

12212202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212202210 is an abundant number, since it is smaller than the sum of its proper divisors (19658193438).

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

12212202210 is a wasteful number, since it uses less digits than its factorization.

12212202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304139.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212202210 its reverse (1220221221), we get a palindrome (13432423431).

The spelling of 12212202210 in words is "twelve billion, two hundred twelve million, two hundred two thousand, two hundred ten".