2121120002 has 8 divisors (see below), whose sum is σ = 3188767500. Its totient is φ = 1058197504.

The previous prime is 2121119993. The next prime is 2121120031. The reversal of 2121120002 is 2000211212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2074893601 + 46226401 = 45551^2 + 6799^2 .

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

It is an unprimeable number.

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, 1180127 + ... + 1181922.

Almost surely, 2^2121120002 is an apocalyptic number.

2121120002 is a deficient number, since it is larger than the sum of its proper divisors (1067647498).

2121120002 is a wasteful number, since it uses less digits than its factorization.

2121120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362500.

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

The square root of 2121120002 is about 46055.6185714620. The cubic root of 2121120002 is about 1284.8578427326.

Adding to 2121120002 its reverse (2000211212), we get a palindrome (4121331214).

The spelling of 2121120002 in words is "two billion, one hundred twenty-one million, one hundred twenty thousand, two".