12121201402 has 8 divisors (see below), whose sum is σ = 18182788416. Its totient is φ = 6060271932.

The previous prime is 12121201363. The next prime is 12121201403. The reversal of 12121201402 is 20410212121.

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

It is not an unprimeable number, because it can be changed into a prime (12121201403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115378 + ... + 193789.

It is an arithmetic number, because the mean of its divisors is an integer number (2272848552).

Almost surely, 2^12121201402 is an apocalyptic number.

12121201402 is a deficient number, since it is larger than the sum of its proper divisors (6061587014).

12121201402 is a wasteful number, since it uses less digits than its factorization.

12121201402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328772.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12121201402 its reverse (20410212121), we get a palindrome (32531413523).

The spelling of 12121201402 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, four hundred two".