2121202204 has 24 divisors (see below), whose sum is σ = 4051233648. Its totient is φ = 963786240.

The previous prime is 2121202147. The next prime is 2121202211. The reversal of 2121202204 is 4022021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116332 + ... + 133324.

It is an arithmetic number, because the mean of its divisors is an integer number (168801402).

Almost surely, 2^2121202204 is an apocalyptic number.

It is an amenable number.

2121202204 is a deficient number, since it is larger than the sum of its proper divisors (1930031444).

2121202204 is a wasteful number, since it uses less digits than its factorization.

2121202204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19845 (or 19843 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2121202204 is about 46056.5109837903. The cubic root of 2121202204 is about 1284.8744403351.

Adding to 2121202204 its reverse (4022021212), we get a palindrome (6143223416).

The spelling of 2121202204 in words is "two billion, one hundred twenty-one million, two hundred two thousand, two hundred four".