12210012221200 has 60 divisors (see below), whose sum is σ = 29335393820880. Its totient is φ = 4883865124480.

The previous prime is 12210012221131. The next prime is 12210012221269. The reversal of 12210012221200 is 212221001221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12210012221131) and next prime (12210012221269).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14168271 + ... + 15005329.

It is an arithmetic number, because the mean of its divisors is an integer number (488923230348).

Almost surely, 2^{12210012221200} is an apocalyptic number.

12210012221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210012221200 is an abundant number, since it is smaller than the sum of its proper divisors (17125381599680).

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

12210012221200 is a wasteful number, since it uses less digits than its factorization.

12210012221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873544 (or 873533 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12210012221200 its reverse (212221001221), we get a palindrome (12422233222421).

The spelling of 12210012221200 in words is "twelve trillion, two hundred ten billion, twelve million, two hundred twenty-one thousand, two hundred".