21130100211 has 8 divisors (see below), whose sum is σ = 30734691264. Its totient is φ = 12806121320.

The previous prime is 21130100191. The next prime is 21130100231. The reversal of 21130100211 is 11200103112.

It is an interprime number because it is at equal distance from previous prime (21130100191) and next prime (21130100231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21130100211 - 2²² = 21125905907 is a prime.

It is a super-2 number, since 2×21130100211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21130100231) 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, 320153001 + ... + 320153066.

It is an arithmetic number, because the mean of its divisors is an integer number (3841836408).

Almost surely, 2^21130100211 is an apocalyptic number.

21130100211 is a deficient number, since it is larger than the sum of its proper divisors (9604591053).

21130100211 is a wasteful number, since it uses less digits than its factorization.

21130100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640306081.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21130100211 its reverse (11200103112), we get a palindrome (32330203323).

The spelling of 21130100211 in words is "twenty-one billion, one hundred thirty million, one hundred thousand, two hundred eleven".