2021101110205 has 16 divisors (see below), whose sum is σ = 2427275741184. Its totient is φ = 1615578307200.

The previous prime is 2021101110101. The next prime is 2021101110211. The reversal of 2021101110205 is 5020111011202.

It is not a de Polignac number, because 2021101110205 - 2²⁹ = 2020564239293 is a prime.

It is a super-3 number, since 3×2021101110205³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56010049 + ... + 56046121.

It is an arithmetic number, because the mean of its divisors is an integer number (151704733824).

Almost surely, 2^{2021101110205} is an apocalyptic number.

It is an amenable number.

2021101110205 is a deficient number, since it is larger than the sum of its proper divisors (406174630979).

2021101110205 is a wasteful number, since it uses less digits than its factorization.

2021101110205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44796.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 2021101110205 its reverse (5020111011202), we get a palindrome (7041212121407).

The spelling of 2021101110205 in words is "two trillion, twenty-one billion, one hundred one million, one hundred ten thousand, two hundred five".