12120121202 has 16 divisors (see below), whose sum is σ = 21999548160. Its totient is φ = 4888788288.

The previous prime is 12120121201. The next prime is 12120121207. The reversal of 12120121202 is 20212102121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (12120121201) 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 in 7 ways as a sum of consecutive naturals, for example, 25462202 + ... + 25462677.

It is an arithmetic number, because the mean of its divisors is an integer number (1374971760).

Almost surely, 2^12120121202 is an apocalyptic number.

12120121202 is a deficient number, since it is larger than the sum of its proper divisors (9879426958).

12120121202 is a wasteful number, since it uses less digits than its factorization.

12120121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50924905.

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

Adding to 12120121202 its reverse (20212102121), we get a palindrome (32332223323).

The spelling of 12120121202 in words is "twelve billion, one hundred twenty million, one hundred twenty-one thousand, two hundred two".