11022661 has 8 divisors (see below), whose sum is σ = 11917304. Its totient is φ = 10134720.

The previous prime is 11022659. The next prime is 11022689. The reversal of 11022661 is 16622011.

It can be written as a sum of positive squares in 4 ways, for example, as 980100 + 10042561 = 990^2 + 3169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11022661 - 2¹ = 11022659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1489663).

Almost surely, 2^11022661 is an apocalyptic number.

It is an amenable number.

11022661 is a deficient number, since it is larger than the sum of its proper divisors (894643).

11022661 is a wasteful number, since it uses less digits than its factorization.

11022661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11022661 is about 3320.0393069962. The cubic root of 11022661 is about 222.5506243433.

Adding to 11022661 its reverse (16622011), we get a palindrome (27644672).

The spelling of 11022661 in words is "eleven million, twenty-two thousand, six hundred sixty-one".