22197026 has 4 divisors (see below), whose sum is σ = 33295542. Its totient is φ = 11098512.

The previous prime is 22197013. The next prime is 22197059. The reversal of 22197026 is 62079122.

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., 12243001 + 9954025 = 3499^2 + 3155^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22197026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5549255 + ... + 5549258.

Almost surely, 2^22197026 is an apocalyptic number.

22197026 is a deficient number, since it is larger than the sum of its proper divisors (11098516).

22197026 is a wasteful number, since it uses less digits than its factorization.

22197026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11098515.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 22197026 is about 4711.3719870119. The cubic root of 22197026 is about 281.0379249986.

The spelling of 22197026 in words is "twenty-two million, one hundred ninety-seven thousand, twenty-six".