2021102100201 has 12 divisors (see below), whose sum is σ = 2790931322192. Its totient is φ = 1300939281264.

The previous prime is 2021102100197. The next prime is 2021102100221. The reversal of 2021102100201 is 1020012011202.

It is not a de Polignac number, because 2021102100201 - 2² = 2021102100197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021102100221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400532971 + ... + 400538016.

Almost surely, 2^{2021102100201} is an apocalyptic number.

It is an amenable number.

2021102100201 is a deficient number, since it is larger than the sum of its proper divisors (769829221991).

2021102100201 is an equidigital number, since it uses as much as digits as its factorization.

2021102100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801071048 (or 801071019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021102100201 its reverse (1020012011202), we get a palindrome (3041114111403).

The spelling of 2021102100201 in words is "two trillion, twenty-one billion, one hundred two million, one hundred thousand, two hundred one".