2121019996 has 12 divisors (see below), whose sum is σ = 3713607352. Its totient is φ = 1059989328.

The previous prime is 2121019993. The next prime is 2121019997. The reversal of 2121019996 is 6999101212.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121019993) 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, 120930 + ... + 137353.

Almost surely, 2^2121019996 is an apocalyptic number.

It is an amenable number.

2121019996 is a deficient number, since it is larger than the sum of its proper divisors (1592587356).

2121019996 is a wasteful number, since it uses less digits than its factorization.

2121019996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260340 (or 260338 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 2121019996 is about 46054.5328496555. The cubic root of 2121019996 is about 1284.8376497036.

The spelling of 2121019996 in words is "two billion, one hundred twenty-one million, nineteen thousand, nine hundred ninety-six".