12122001002 has 8 divisors (see below), whose sum is σ = 18210511812. Its totient is φ = 6051830400.

The previous prime is 12122000951. The next prime is 12122001049. The reversal of 12122001002 is 20010022121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12104620441 + 17380561 = 110021^2 + 4169^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4583399 + ... + 4586042.

Almost surely, 2^12122001002 is an apocalyptic number.

12122001002 is a deficient number, since it is larger than the sum of its proper divisors (6088510810).

12122001002 is an equidigital number, since it uses as much as digits as its factorization.

12122001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9170104.

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

Adding to 12122001002 its reverse (20010022121), we get a palindrome (32132023123).

The spelling of 12122001002 in words is "twelve billion, one hundred twenty-two million, one thousand, two".