222250726 has 4 divisors (see below), whose sum is σ = 333376092. Its totient is φ = 111125362.

The previous prime is 222250723. The next prime is 222250727. The reversal of 222250726 is 627052222.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 222250694 and 222250703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222250723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55562680 + ... + 55562683.

It is an arithmetic number, because the mean of its divisors is an integer number (83344023).

Almost surely, 2^222250726 is an apocalyptic number.

222250726 is a deficient number, since it is larger than the sum of its proper divisors (111125366).

222250726 is a wasteful number, since it uses less digits than its factorization.

222250726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111125365.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 222250726 is about 14908.0758651142. The cubic root of 222250726 is about 605.7327605710.

The spelling of 222250726 in words is "two hundred twenty-two million, two hundred fifty thousand, seven hundred twenty-six".