2042240402221 has 16 divisors (see below), whose sum is σ = 2166299467200. Its totient is φ = 1919840832000.

The previous prime is 2042240402201. The next prime is 2042240402231. The reversal of 2042240402221 is 1222040422402.

It is a cyclic number.

It is not a de Polignac number, because 2042240402221 - 2²⁵ = 2042206847789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042240402201) 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, 48487071 + ... + 48529171.

It is an arithmetic number, because the mean of its divisors is an integer number (135393716700).

Almost surely, 2^{2042240402221} is an apocalyptic number.

It is an amenable number.

2042240402221 is a deficient number, since it is larger than the sum of its proper divisors (124059064979).

2042240402221 is a wasteful number, since it uses less digits than its factorization.

2042240402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61740.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 2042240402221 its reverse (1222040422402), we get a palindrome (3264280824623).

The spelling of 2042240402221 in words is "two trillion, forty-two billion, two hundred forty million, four hundred two thousand, two hundred twenty-one".