12121000022102 has 4 divisors (see below), whose sum is σ = 18181500033156. Its totient is φ = 6060500011050.

The previous prime is 12121000022093. The next prime is 12121000022107. The reversal of 12121000022102 is 20122000012121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121000022107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030250005524 + ... + 3030250005527.

It is an arithmetic number, because the mean of its divisors is an integer number (4545375008289).

Almost surely, 2^{12121000022102} is an apocalyptic number.

12121000022102 is a deficient number, since it is larger than the sum of its proper divisors (6060500011054).

12121000022102 is an equidigital number, since it uses as much as digits as its factorization.

12121000022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060500011053.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12121000022102 its reverse (20122000012121), we get a palindrome (32243000034223).

The spelling of 12121000022102 in words is "twelve trillion, one hundred twenty-one billion, twenty-two thousand, one hundred two".