12210401222 has 32 divisors (see below), whose sum is σ = 19236372480. Its totient is φ = 5804900640.

The previous prime is 12210401221. The next prime is 12210401261. The reversal of 12210401222 is 22210401221.

It is a self number, because there is not a number n which added to its sum of digits gives 12210401222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210401221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847343 + ... + 6849125.

It is an arithmetic number, because the mean of its divisors is an integer number (601136640).

Almost surely, 2^12210401222 is an apocalyptic number.

12210401222 is a deficient number, since it is larger than the sum of its proper divisors (7025971258).

12210401222 is a wasteful number, since it uses less digits than its factorization.

12210401222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12210401222 its reverse (22210401221), we get a palindrome (34420802443).

Subtracting 12210401222 from its reverse (22210401221), we obtain a palindrome (9999999999).

The spelling of 12210401222 in words is "twelve billion, two hundred ten million, four hundred one thousand, two hundred twenty-two".