4022022400421 has 4 divisors (see below), whose sum is σ = 4049015839500. Its totient is φ = 3995028961344.

The previous prime is 4022022400411. The next prime is 4022022400463. The reversal of 4022022400421 is 1240042202204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2582574347521 + 1439448052900 = 1607039^2 + 1199770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4022022400421 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 (4022022400411) 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 3 ways as a sum of consecutive naturals, for example, 13496719316 + ... + 13496719613.

It is an arithmetic number, because the mean of its divisors is an integer number (1012253959875).

Almost surely, 2^{4022022400421} is an apocalyptic number.

It is an amenable number.

4022022400421 is a deficient number, since it is larger than the sum of its proper divisors (26993439079).

4022022400421 is a wasteful number, since it uses less digits than its factorization.

4022022400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26993439078.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 4022022400421 its reverse (1240042202204), we get a palindrome (5262064602625).

The spelling of 4022022400421 in words is "four trillion, twenty-two billion, twenty-two million, four hundred thousand, four hundred twenty-one".