21300221095 has 4 divisors (see below), whose sum is σ = 25560265320. Its totient is φ = 17040176872.

The previous prime is 21300221081. The next prime is 21300221101. The reversal of 21300221095 is 59012200312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21300221095 - 2²⁷ = 21166003367 is a prime.

It is a super-3 number, since 3×21300221095³ (a number of 32 digits) contains 333 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, 2130022105 + ... + 2130022114.

It is an arithmetic number, because the mean of its divisors is an integer number (6390066330).

Almost surely, 2^21300221095 is an apocalyptic number.

21300221095 is a deficient number, since it is larger than the sum of its proper divisors (4260044225).

21300221095 is an equidigital number, since it uses as much as digits as its factorization.

21300221095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260044224.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 21300221095 in words is "twenty-one billion, three hundred million, two hundred twenty-one thousand, ninety-five".