21041516201 has 8 divisors (see below), whose sum is σ = 21171979584. Its totient is φ = 20911106320.

The previous prime is 21041516183. The next prime is 21041516203. The reversal of 21041516201 is 10261514012.

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 21041516201 - 2¹⁰ = 21041515177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21041516203) 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, 1020686 + ... + 1041096.

It is an arithmetic number, because the mean of its divisors is an integer number (2646497448).

Almost surely, 2^21041516201 is an apocalyptic number.

It is an amenable number.

21041516201 is a deficient number, since it is larger than the sum of its proper divisors (130463383).

21041516201 is a wasteful number, since it uses less digits than its factorization.

21041516201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26751.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 21041516201 in words is "twenty-one billion, forty-one million, five hundred sixteen thousand, two hundred one".