210221102100001 has 16 divisors (see below), whose sum is σ = 239287309436160. Its totient is φ = 183453603874560.

The previous prime is 210221102099971. The next prime is 210221102100017. The reversal of 210221102100001 is 100001201122012.

It is a cyclic number.

It is not a de Polignac number, because 210221102100001 - 2¹³ = 210221102091809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210221102100041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6923807430 + ... + 6923837791.

It is an arithmetic number, because the mean of its divisors is an integer number (14955456839760).

Almost surely, 2^{210221102100001} is an apocalyptic number.

It is an amenable number.

210221102100001 is a deficient number, since it is larger than the sum of its proper divisors (29066207336159).

210221102100001 is a wasteful number, since it uses less digits than its factorization.

210221102100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847645304.

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

Adding to 210221102100001 its reverse (100001201122012), we get a palindrome (310222303222013).

The spelling of 210221102100001 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, one".