12012222221002 has 32 divisors (see below), whose sum is σ = 18980200068480. Its totient is φ = 5685941007360.

The previous prime is 12012222220919. The next prime is 12012222221081. The reversal of 12012222221002 is 20012222221021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815098978 + ... + 815113714.

It is an arithmetic number, because the mean of its divisors is an integer number (593131252140).

Almost surely, 2^{12012222221002} is an apocalyptic number.

12012222221002 is a deficient number, since it is larger than the sum of its proper divisors (6967977847478).

12012222221002 is a wasteful number, since it uses less digits than its factorization.

12012222221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28606.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12012222221002 its sum of digits (19), we get a palindrome (12012222221021).

Adding to 12012222221002 its reverse (20012222221021), we get a palindrome (32024444442023).

The spelling of 12012222221002 in words is "twelve trillion, twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, two".