7020444221 has 4 divisors (see below), whose sum is σ = 8023364832. Its totient is φ = 6017523612.

The previous prime is 7020444217. The next prime is 7020444239. The reversal of 7020444221 is 1224440207.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1224440207 = 103 ⋅11887769.

It is a cyclic number.

It is not a de Polignac number, because 7020444221 - 2² = 7020444217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7020444241) 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, 501460295 + ... + 501460308.

It is an arithmetic number, because the mean of its divisors is an integer number (2005841208).

Almost surely, 2^7020444221 is an apocalyptic number.

It is an amenable number.

7020444221 is a deficient number, since it is larger than the sum of its proper divisors (1002920611).

7020444221 is a wasteful number, since it uses less digits than its factorization.

7020444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002920610.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 7020444221 is about 83788.0911645563. The cubic root of 7020444221 is about 1914.7916768751.

Adding to 7020444221 its reverse (1224440207), we get a palindrome (8244884428).

The spelling of 7020444221 in words is "seven billion, twenty million, four hundred forty-four thousand, two hundred twenty-one".