12121000202 has 8 divisors (see below), whose sum is σ = 18184645476. Its totient is φ = 6059451712.

The previous prime is 12121000193. The next prime is 12121000219. The reversal of 12121000202 is 20200012121.

It is a happy number.

12121000202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12109021681 + 11978521 = 110041^2 + 3461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509663 + ... + 532914.

Almost surely, 2^12121000202 is an apocalyptic number.

12121000202 is a deficient number, since it is larger than the sum of its proper divisors (6063645274).

12121000202 is a wasteful number, since it uses less digits than its factorization.

12121000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048392.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12121000202 its reverse (20200012121), we get a palindrome (32321012323).

The spelling of 12121000202 in words is "twelve billion, one hundred twenty-one million, two hundred two", and thus it is an aban number.