12101243202 has 12 divisors (see below), whose sum is σ = 26219360310. Its totient is φ = 4033747728.

The previous prime is 12101243201. The next prime is 12101243239. The reversal of 12101243202 is 20234210121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6361817121 + 5739426081 = 79761^2 + 75759^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 672291289 = 12101243202 / (1 + 2 + 1 + 0 + 1 + 2 + 4 + 3 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (12101243201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336145627 + ... + 336145662.

Almost surely, 2^12101243202 is an apocalyptic number.

12101243202 is an abundant number, since it is smaller than the sum of its proper divisors (14118117108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101243202 is a wasteful number, since it uses less digits than its factorization.

12101243202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672291297 (or 672291294 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12101243202 its reverse (20234210121), we get a palindrome (32335453323).

The spelling of 12101243202 in words is "twelve billion, one hundred one million, two hundred forty-three thousand, two hundred two".