11521022 has 16 divisors (see below), whose sum is σ = 18133632. Its totient is φ = 5479320.

The previous prime is 11521021. The next prime is 11521031. The reversal of 11521022 is 22012511.

It is a junction number, because it is equal to n+sod(n) for n = 11520988 and 11521006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521021) 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, 9113 + ... + 10299.

It is an arithmetic number, because the mean of its divisors is an integer number (1133352).

Almost surely, 2^11521022 is an apocalyptic number.

11521022 is a deficient number, since it is larger than the sum of its proper divisors (6612610).

11521022 is a wasteful number, since it uses less digits than its factorization.

11521022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 11521022 is about 3394.2631011753. The cubic root of 11521022 is about 225.8553254758.

Adding to 11521022 its reverse (22012511), we get a palindrome (33533533).

The spelling of 11521022 in words is "eleven million, five hundred twenty-one thousand, twenty-two".