21020211001201 has 8 divisors (see below), whose sum is σ = 21570683657600. Its totient is φ = 20472539733072.

The previous prime is 21020211001187. The next prime is 21020211001213. The reversal of 21020211001201 is 10210011202012.

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 21020211001201 - 2⁵ = 21020211001169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21020211001261) 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, 700331865 + ... + 700361878.

It is an arithmetic number, because the mean of its divisors is an integer number (2696335457200).

Almost surely, 2^{21020211001201} is an apocalyptic number.

It is an amenable number.

21020211001201 is a deficient number, since it is larger than the sum of its proper divisors (550472656399).

21020211001201 is a wasteful number, since it uses less digits than its factorization.

21020211001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400694135.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21020211001201 its reverse (10210011202012), we get a palindrome (31230222203213).

The spelling of 21020211001201 in words is "twenty-one trillion, twenty billion, two hundred eleven million, one thousand, two hundred one".