2221188026 has 16 divisors (see below), whose sum is σ = 3341834496. Its totient is φ = 1107249696.

The previous prime is 2221187957. The next prime is 2221188049. The reversal of 2221188026 is 6208811222.

It is a junction number, because it is equal to n+sod(n) for n = 2221187983 and 2221188001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416695 + ... + 1418261.

It is an arithmetic number, because the mean of its divisors is an integer number (208864656).

Almost surely, 2^2221188026 is an apocalyptic number.

2221188026 is a deficient number, since it is larger than the sum of its proper divisors (1120646470).

2221188026 is a wasteful number, since it uses less digits than its factorization.

2221188026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 2221188026 is about 47129.4814951321. The cubic root of 2221188026 is about 1304.7534119113.

Adding to 2221188026 its reverse (6208811222), we get a palindrome (8429999248).

The spelling of 2221188026 in words is "two billion, two hundred twenty-one million, one hundred eighty-eight thousand, twenty-six".