11021772 has 12 divisors (see below), whose sum is σ = 25717496. Its totient is φ = 3673920.

The previous prime is 11021741. The next prime is 11021779. The reversal of 11021772 is 27712011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11021779) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 459229 + ... + 459252.

Almost surely, 2^11021772 is an apocalyptic number.

11021772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11021772 is an abundant number, since it is smaller than the sum of its proper divisors (14695724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021772 is a wasteful number, since it uses less digits than its factorization.

11021772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918488 (or 918486 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 11021772 is about 3319.9054203396. The cubic root of 11021772 is about 222.5446411291.

Adding to 11021772 its reverse (27712011), we get a palindrome (38733783).

The spelling of 11021772 in words is "eleven million, twenty-one thousand, seven hundred seventy-two".