7222161607 has 4 divisors (see below), whose sum is σ = 7230937840. Its totient is φ = 7213385376.

The previous prime is 7222161601. The next prime is 7222161641. The reversal of 7222161607 is 7061612227.

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 7222161607 - 2¹⁵ = 7222128839 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 (7222161601) 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, 4386882 + ... + 4388527.

It is an arithmetic number, because the mean of its divisors is an integer number (1807734460).

Almost surely, 2^7222161607 is an apocalyptic number.

7222161607 is a deficient number, since it is larger than the sum of its proper divisors (8776233).

7222161607 is an equidigital number, since it uses as much as digits as its factorization.

7222161607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8776232.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 7222161607 is about 84983.3019304381. The cubic root of 7222161607 is about 1932.9579248268.

The spelling of 7222161607 in words is "seven billion, two hundred twenty-two million, one hundred sixty-one thousand, six hundred seven".