21752203020201 has 24 divisors (see below), whose sum is σ = 31431382111584. Its totient is φ = 14496146559360.

The previous prime is 21752203020173. The next prime is 21752203020221. The reversal of 21752203020201 is 10202030225712.

21752203020201 is a `hidden beast` number, since 217 + 5 + 220 + 3 + 0 + 20 + 201 = 666.

It is not a de Polignac number, because 21752203020201 - 2¹⁵ = 21752202987433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21752203020221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331469745 + ... + 331535361.

It is an arithmetic number, because the mean of its divisors is an integer number (1309640921316).

Almost surely, 2^{21752203020201} is an apocalyptic number.

It is an amenable number.

21752203020201 is a deficient number, since it is larger than the sum of its proper divisors (9679179091383).

21752203020201 is a wasteful number, since it uses less digits than its factorization.

21752203020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78581 (or 78578 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 21752203020201 its reverse (10202030225712), we get a palindrome (31954233245913).

The spelling of 21752203020201 in words is "twenty-one trillion, seven hundred fifty-two billion, two hundred three million, twenty thousand, two hundred one".