12121001102002 has 32 divisors (see below), whose sum is σ = 19801617620400. Its totient is φ = 5531021134848.

The previous prime is 12121001101967. The next prime is 12121001102009. The reversal of 12121001102002 is 20020110012121.

It can be written as a sum of positive squares in 8 ways, for example, as 161307460161 + 11959693641841 = 401631^2 + 3458279^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (12121001102009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30600238 + ... + 30993814.

Almost surely, 2^{12121001102002} is an apocalyptic number.

12121001102002 is a deficient number, since it is larger than the sum of its proper divisors (7680616518398).

12121001102002 is a wasteful number, since it uses less digits than its factorization.

12121001102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406990.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12121001102002 its reverse (20020110012121), we get a palindrome (32141111114123).

The spelling of 12121001102002 in words is "twelve trillion, one hundred twenty-one billion, one million, one hundred two thousand, two".