7222071 has 8 divisors (see below), whose sum is σ = 10136320. Its totient is φ = 4561272.

The previous prime is 7222063. The next prime is 7222087. The reversal of 7222071 is 1702227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7222071 - 2³ = 7222063 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 (7222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63295 + ... + 63408.

It is an arithmetic number, because the mean of its divisors is an integer number (1267040).

Almost surely, 2^7222071 is an apocalyptic number.

7222071 is a deficient number, since it is larger than the sum of its proper divisors (2914249).

7222071 is a wasteful number, since it uses less digits than its factorization.

7222071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126725.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 7222071 is about 2687.3911140733. The cubic root of 7222071 is about 193.2949841363.

Adding to 7222071 its reverse (1702227), we get a palindrome (8924298).

The spelling of 7222071 in words is "seven million, two hundred twenty-two thousand, seventy-one".