2121012120002 has 8 divisors (see below), whose sum is σ = 3182057712396. Its totient is φ = 1060326215872.

The previous prime is 2121012119981. The next prime is 2121012120067. The reversal of 2121012120002 is 2000212101212.

It can be written as a sum of positive squares in 2 ways, for example, as 1946998831801 + 174013288201 = 1395349^2 + 417149^2 .

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, 89907323 + ... + 89930910.

Almost surely, 2^{2121012120002} is an apocalyptic number.

2121012120002 is a deficient number, since it is larger than the sum of its proper divisors (1061045592394).

2121012120002 is a wasteful number, since it uses less digits than its factorization.

2121012120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179844132.

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

Adding to 2121012120002 its reverse (2000212101212), we get a palindrome (4121224221214).

The spelling of 2121012120002 in words is "two trillion, one hundred twenty-one billion, twelve million, one hundred twenty thousand, two".