2021121110201 has 16 divisors (see below), whose sum is σ = 2043699886800. Its totient is φ = 1998594528000.

The previous prime is 2021121110191. The next prime is 2021121110213. The reversal of 2021121110201 is 1020111211202.

It can be written as a sum of positive squares in 8 ways, for example, as 216505020601 + 1804616089600 = 465301^2 + 1343360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021121110201 - 2¹⁸ = 2021120848057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021121110251) 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, 402531071 + ... + 402536091.

It is an arithmetic number, because the mean of its divisors is an integer number (127731242925).

Almost surely, 2^{2021121110201} is an apocalyptic number.

It is an amenable number.

2021121110201 is a deficient number, since it is larger than the sum of its proper divisors (22578776599).

2021121110201 is a wasteful number, since it uses less digits than its factorization.

2021121110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9340.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021121110201 its reverse (1020111211202), we get a palindrome (3041232321403).

The spelling of 2021121110201 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred ten thousand, two hundred one".