12121140002 has 4 divisors (see below), whose sum is σ = 18181710006. Its totient is φ = 6060570000.

The previous prime is 12121139957. The next prime is 12121140137. The reversal of 12121140002 is 20004112121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20004112121 = 7 ⋅2857730303.

It can be written as a sum of positive squares in only one way, i.e., 12003612721 + 117527281 = 109561^2 + 10841^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030284999 + ... + 3030285002.

Almost surely, 2^12121140002 is an apocalyptic number.

12121140002 is a deficient number, since it is larger than the sum of its proper divisors (6060570004).

12121140002 is an equidigital number, since it uses as much as digits as its factorization.

12121140002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060570003.

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

Adding to 12121140002 its reverse (20004112121), we get a palindrome (32125252123).

The spelling of 12121140002 in words is "twelve billion, one hundred twenty-one million, one hundred forty thousand, two".