21300221001 has 8 divisors (see below), whose sum is σ = 28422332640. Its totient is φ = 14189128352.

The previous prime is 21300220987. The next prime is 21300221081. The reversal of 21300221001 is 10012200312.

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 21300221001 - 2⁵ = 21300220969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300221081) 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, 2750235 + ... + 2757968.

It is an arithmetic number, because the mean of its divisors is an integer number (3552791580).

Almost surely, 2^21300221001 is an apocalyptic number.

It is an amenable number.

21300221001 is a deficient number, since it is larger than the sum of its proper divisors (7122111639).

21300221001 is a wasteful number, since it uses less digits than its factorization.

21300221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509495.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21300221001 its reverse (10012200312), we get a palindrome (31312421313).

The spelling of 21300221001 in words is "twenty-one billion, three hundred million, two hundred twenty-one thousand, one".