21130404202 has 16 divisors (see below), whose sum is σ = 32745134592. Its totient is φ = 10215923760.

The previous prime is 21130404193. The next prime is 21130404247. The reversal of 21130404202 is 20240403112.

It is a self number, because there is not a number n which added to its sum of digits gives 21130404202.

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, 65278 + ... + 215689.

It is an arithmetic number, because the mean of its divisors is an integer number (2046570912).

Almost surely, 2^21130404202 is an apocalyptic number.

21130404202 is a deficient number, since it is larger than the sum of its proper divisors (11614730390).

21130404202 is a wasteful number, since it uses less digits than its factorization.

21130404202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282213.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21130404202 its reverse (20240403112), we get a palindrome (41370807314).

The spelling of 21130404202 in words is "twenty-one billion, one hundred thirty million, four hundred four thousand, two hundred two".