12102111120202 has 4 divisors (see below), whose sum is σ = 18153166680306. Its totient is φ = 6051055560100.

The previous prime is 12102111120163. The next prime is 12102111120217. The reversal of 12102111120202 is 20202111120121.

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., 7319400182721 + 4782710937481 = 2705439^2 + 2186941^2 .

It is a super-2 number, since 2×12102111120202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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, 3025527780049 + ... + 3025527780052.

Almost surely, 2^{12102111120202} is an apocalyptic number.

12102111120202 is a deficient number, since it is larger than the sum of its proper divisors (6051055560104).

12102111120202 is an equidigital number, since it uses as much as digits as its factorization.

12102111120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051055560103.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12102111120202 its reverse (20202111120121), we get a palindrome (32304222240323).

The spelling of 12102111120202 in words is "twelve trillion, one hundred two billion, one hundred eleven million, one hundred twenty thousand, two hundred two".