7222051 has 4 divisors (see below), whose sum is σ = 7292272. Its totient is φ = 7151832.

The previous prime is 7222043. The next prime is 7222063. The reversal of 7222051 is 1502227.

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

It is a cyclic number.

It is not a de Polignac number, because 7222051 - 2³ = 7222043 is a prime.

It is a Duffinian number.

7222051 is a lucky 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 3 ways as a sum of consecutive naturals, for example, 34956 + ... + 35161.

It is an arithmetic number, because the mean of its divisors is an integer number (1823068).

Almost surely, 2^7222051 is an apocalyptic number.

7222051 is a deficient number, since it is larger than the sum of its proper divisors (70221).

7222051 is a wasteful number, since it uses less digits than its factorization.

7222051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70220.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 7222051 is about 2687.3873929897. The cubic root of 7222051 is about 193.2948057062.

Adding to 7222051 its reverse (1502227), we get a palindrome (8724278).

The spelling of 7222051 in words is "seven million, two hundred twenty-two thousand, fifty-one".