12212120112002 has 4 divisors (see below), whose sum is σ = 18318180168006. Its totient is φ = 6106060056000.

The previous prime is 12212120111993. The next prime is 12212120112007. The reversal of 12212120112002 is 20021102121221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9715495746961 + 2496624365041 = 3116969^2 + 1580071^2 .

It is not an unprimeable number, because it can be changed into a prime (12212120112007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053030027999 + ... + 3053030028002.

Almost surely, 2^{12212120112002} is an apocalyptic number.

12212120112002 is a deficient number, since it is larger than the sum of its proper divisors (6106060056004).

12212120112002 is an equidigital number, since it uses as much as digits as its factorization.

12212120112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106060056003.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212120112002 its reverse (20021102121221), we get a palindrome (32233222233223).

The spelling of 12212120112002 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twelve thousand, two".