2204000004021 has 64 divisors (see below), whose sum is σ = 3095627673600. Its totient is φ = 1393615770624.

The previous prime is 2204000003999. The next prime is 2204000004079. The reversal of 2204000004021 is 1204000004022.

It is not a de Polignac number, because 2204000004021 - 2⁷ = 2204000003893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204000004421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200303506 + ... + 200314508.

It is an arithmetic number, because the mean of its divisors is an integer number (48369182400).

Almost surely, 2^{2204000004021} is an apocalyptic number.

It is an amenable number.

2204000004021 is a deficient number, since it is larger than the sum of its proper divisors (891627669579).

2204000004021 is a wasteful number, since it uses less digits than its factorization.

2204000004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2204000004021 its reverse (1204000004022), we get a palindrome (3408000008043).

Subtracting from 2204000004021 its reverse (1204000004022), we obtain a palindrome (999999999999).

The spelling of 2204000004021 in words is "two trillion, two hundred four billion, four thousand, twenty-one".