21595093101 has 8 divisors (see below), whose sum is σ = 31992730560. Its totient is φ = 14396728716.

The previous prime is 21595093097. The next prime is 21595093123. The reversal of 21595093101 is 10139059512.

It is not a de Polignac number, because 21595093101 - 2² = 21595093097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21595093151) 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, 399909105 + ... + 399909158.

It is an arithmetic number, because the mean of its divisors is an integer number (3999091320).

Almost surely, 2^21595093101 is an apocalyptic number.

It is an amenable number.

21595093101 is a deficient number, since it is larger than the sum of its proper divisors (10397637459).

21595093101 is an equidigital number, since it uses as much as digits as its factorization.

21595093101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799818272 (or 799818266 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The spelling of 21595093101 in words is "twenty-one billion, five hundred ninety-five million, ninety-three thousand, one hundred one".