2021111020201 has 16 divisors (see below), whose sum is σ = 2487555504000. Its totient is φ = 1599098790528.

The previous prime is 2021111020169. The next prime is 2021111020207. The reversal of 2021111020201 is 1020201111202.

It is a cyclic number.

It is not a de Polignac number, because 2021111020201 - 2⁵ = 2021111020169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (2021111020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10711725 + ... + 10898773.

It is an arithmetic number, because the mean of its divisors is an integer number (155472219000).

Almost surely, 2^{2021111020201} is an apocalyptic number.

It is an amenable number.

2021111020201 is a deficient number, since it is larger than the sum of its proper divisors (466444483799).

2021111020201 is a wasteful number, since it uses less digits than its factorization.

2021111020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305808.

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

Adding to 2021111020201 its reverse (1020201111202), we get a palindrome (3041312131403).

The spelling of 2021111020201 in words is "two trillion, twenty-one billion, one hundred eleven million, twenty thousand, two hundred one".