21115250301 has 8 divisors (see below), whose sum is σ = 28194890400. Its totient is φ = 14056221872.

The previous prime is 21115250287. The next prime is 21115250311. The reversal of 21115250301 is 10305251112.

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 21115250301 - 2⁶ = 21115250237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21115250311) 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, 5150526 + ... + 5154623.

It is an arithmetic number, because the mean of its divisors is an integer number (3524361300).

Almost surely, 2^21115250301 is an apocalyptic number.

It is an amenable number.

21115250301 is a deficient number, since it is larger than the sum of its proper divisors (7079640099).

21115250301 is a wasteful number, since it uses less digits than its factorization.

21115250301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305835.

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 21115250301 in words is "twenty-one billion, one hundred fifteen million, two hundred fifty thousand, three hundred one".