2121002204 has 24 divisors (see below), whose sum is σ = 3738480480. Its totient is φ = 1052880896.

The previous prime is 2121002197. The next prime is 2121002207. The reversal of 2121002204 is 4022001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121002207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811652 + ... + 814260.

It is an arithmetic number, because the mean of its divisors is an integer number (155770020).

Almost surely, 2^2121002204 is an apocalyptic number.

It is an amenable number.

2121002204 is a deficient number, since it is larger than the sum of its proper divisors (1617478276).

2121002204 is a wasteful number, since it uses less digits than its factorization.

2121002204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997 (or 3995 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2121002204 is about 46054.3396869394. The cubic root of 2121002204 is about 1284.8340571090.

Adding to 2121002204 its reverse (4022001212), we get a palindrome (6143003416).

The spelling of 2121002204 in words is "two billion, one hundred twenty-one million, two thousand, two hundred four".