21130110201 has 8 divisors (see below), whose sum is σ = 28176565984. Its totient is φ = 14085197280.

The previous prime is 21130110191. The next prime is 21130110233. The reversal of 21130110201 is 10201103112.

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

It is not a de Polignac number, because 21130110201 - 2⁷ = 21130110073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130110251) 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, 353371 + ... + 408816.

It is an arithmetic number, because the mean of its divisors is an integer number (3522070748).

Almost surely, 2^21130110201 is an apocalyptic number.

It is an amenable number.

21130110201 is a deficient number, since it is larger than the sum of its proper divisors (7046455783).

21130110201 is an equidigital number, since it uses as much as digits as its factorization.

21130110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771431.

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

Adding to 21130110201 its reverse (10201103112), we get a palindrome (31331213313).

The spelling of 21130110201 in words is "twenty-one billion, one hundred thirty million, one hundred ten thousand, two hundred one".