222660026 has 4 divisors (see below), whose sum is σ = 333990042. Its totient is φ = 111330012.

The previous prime is 222659989. The next prime is 222660029. The reversal of 222660026 is 620066222.

222660026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 120670225 + 101989801 = 10985^2 + 10099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222659977 and 222660004.

It is not an unprimeable number, because it can be changed into a prime (222660029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665005 + ... + 55665008.

Almost surely, 2^222660026 is an apocalyptic number.

222660026 is a deficient number, since it is larger than the sum of its proper divisors (111330016).

222660026 is a wasteful number, since it uses less digits than its factorization.

222660026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111330015.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 222660026 is about 14921.7970097438. The cubic root of 222660026 is about 606.1043744745.

The spelling of 222660026 in words is "two hundred twenty-two million, six hundred sixty thousand, twenty-six".