21160201204 has 12 divisors (see below), whose sum is σ = 38640367584. Its totient is φ = 10120096184.

The previous prime is 21160201193. The next prime is 21160201217. The reversal of 21160201204 is 40210206112.

It is a super-2 number, since 2×21160201204² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 115001002 + ... + 115001185.

It is an arithmetic number, because the mean of its divisors is an integer number (3220030632).

Almost surely, 2^21160201204 is an apocalyptic number.

It is an amenable number.

21160201204 is a deficient number, since it is larger than the sum of its proper divisors (17480166380).

21160201204 is a wasteful number, since it uses less digits than its factorization.

21160201204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230002214 (or 230002212 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21160201204 its reverse (40210206112), we get a palindrome (61370407316).

The spelling of 21160201204 in words is "twenty-one billion, one hundred sixty million, two hundred one thousand, two hundred four".