7126222 has 4 divisors (see below), whose sum is σ = 10689336. Its totient is φ = 3563110.

The previous prime is 7126201. The next prime is 7126243. The reversal of 7126222 is 2226217.

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

It is an interprime number because it is at equal distance from previous prime (7126201) and next prime (7126243).

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7126193 and 7126202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781554 + ... + 1781557.

It is an arithmetic number, because the mean of its divisors is an integer number (2672334).

Almost surely, 2^7126222 is an apocalyptic number.

7126222 is a deficient number, since it is larger than the sum of its proper divisors (3563114).

7126222 is a wasteful number, since it uses less digits than its factorization.

7126222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563113.

The product of its digits is 672, while the sum is 22.

The square root of 7126222 is about 2669.4984547664. The cubic root of 7126222 is about 192.4360567967.

The spelling of 7126222 in words is "seven million, one hundred twenty-six thousand, two hundred twenty-two".