7220222197 has 4 divisors (see below), whose sum is σ = 7225747776. Its totient is φ = 7214696620.

The previous prime is 7220222159. The next prime is 7220222209. The reversal of 7220222197 is 7912220227.

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: 7912220227 = 5153 ⋅1535459.

It is a cyclic number.

It is not a de Polignac number, because 7220222197 - 2¹¹ = 7220220149 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 (7220222137) 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, 2760829 + ... + 2763442.

It is an arithmetic number, because the mean of its divisors is an integer number (1806436944).

Almost surely, 2^7220222197 is an apocalyptic number.

It is an amenable number.

7220222197 is a deficient number, since it is larger than the sum of its proper divisors (5525579).

7220222197 is a wasteful number, since it uses less digits than its factorization.

7220222197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525578.

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

The square root of 7220222197 is about 84971.8906286073. The cubic root of 7220222197 is about 1932.7848864418.

The spelling of 7220222197 in words is "seven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred ninety-seven".