12402122002 has 8 divisors (see below), whose sum is σ = 18684420300. Its totient is φ = 6173981904.

The previous prime is 12402121951. The next prime is 12402122003. The reversal of 12402122002 is 20022120421.

12402122002 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 12367441681 + 34680321 = 111209^2 + 5889^2 .

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 (12402122003) by changing a digit.

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, 13538977 + ... + 13539892.

Almost surely, 2^12402122002 is an apocalyptic number.

12402122002 is a deficient number, since it is larger than the sum of its proper divisors (6282298298).

12402122002 is a wasteful number, since it uses less digits than its factorization.

12402122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27079100.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12402122002 its reverse (20022120421), we get a palindrome (32424242423).

The spelling of 12402122002 in words is "twelve billion, four hundred two million, one hundred twenty-two thousand, two".