4022022421 has 4 divisors (see below), whose sum is σ = 4044492000. Its totient is φ = 3999552844.

The previous prime is 4022022409. The next prime is 4022022437. The reversal of 4022022421 is 1242202204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4022022421 - 2⁹ = 4022021909 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 (4022022721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11234521 + ... + 11234878.

It is an arithmetic number, because the mean of its divisors is an integer number (1011123000).

Almost surely, 2^4022022421 is an apocalyptic number.

It is an amenable number.

4022022421 is a deficient number, since it is larger than the sum of its proper divisors (22469579).

4022022421 is a wasteful number, since it uses less digits than its factorization.

4022022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469578.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4022022421 is about 63419.4167507081. The cubic root of 4022022421 is about 1590.3089231376.

Adding to 4022022421 its reverse (1242202204), we get a palindrome (5264224625).

The spelling of 4022022421 in words is "four billion, twenty-two million, twenty-two thousand, four hundred twenty-one".