12102111202 has 4 divisors (see below), whose sum is σ = 18153166806. Its totient is φ = 6051055600.

The previous prime is 12102111193. The next prime is 12102111247. The reversal of 12102111202 is 20211120121.

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., 8867800561 + 3234310641 = 94169^2 + 56871^2 .

It is a super-2 number, since 2×12102111202² (a number of 21 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, 3025527799 + ... + 3025527802.

Almost surely, 2^12102111202 is an apocalyptic number.

12102111202 is a deficient number, since it is larger than the sum of its proper divisors (6051055604).

12102111202 is an equidigital number, since it uses as much as digits as its factorization.

12102111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051055603.

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

Adding to 12102111202 its reverse (20211120121), we get a palindrome (32313231323).

The spelling of 12102111202 in words is "twelve billion, one hundred two million, one hundred eleven thousand, two hundred two".