2021042042411 has 32 divisors (see below), whose sum is σ = 2385303664128. Its totient is φ = 1676189583360.

The previous prime is 2021042042399. The next prime is 2021042042413. The reversal of 2021042042411 is 1142402401202.

It is a cyclic number.

It is not a de Polignac number, because 2021042042411 - 2³⁰ = 2019968300587 is a prime.

It is a super-2 number, since 2×2021042042411² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021042042413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204491876 + ... + 204501758.

It is an arithmetic number, because the mean of its divisors is an integer number (74540739504).

Almost surely, 2^{2021042042411} is an apocalyptic number.

2021042042411 is a deficient number, since it is larger than the sum of its proper divisors (364261621717).

2021042042411 is a wasteful number, since it uses less digits than its factorization.

2021042042411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 2021042042411 its reverse (1142402401202), we get a palindrome (3163444443613).

The spelling of 2021042042411 in words is "two trillion, twenty-one billion, forty-two million, forty-two thousand, four hundred eleven".