11522101 has 4 divisors (see below), whose sum is σ = 11680012. Its totient is φ = 11364192.

The previous prime is 11522099. The next prime is 11522117. The reversal of 11522101 is 10122511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10122511 = 7 ⋅1446073.

It can be written as a sum of positive squares in 2 ways, for example, as 8994001 + 2528100 = 2999^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 11522101 - 2¹ = 11522099 is a prime.

It is a super-2 number, since 2×11522101² = 265517622908402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78846 + ... + 78991.

It is an arithmetic number, because the mean of its divisors is an integer number (2920003).

Almost surely, 2^11522101 is an apocalyptic number.

It is an amenable number.

11522101 is a deficient number, since it is larger than the sum of its proper divisors (157911).

11522101 is an equidigital number, since it uses as much as digits as its factorization.

11522101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157910.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 11522101 is about 3394.4220421156. The cubic root of 11522101 is about 225.8623760739.

Adding to 11522101 its reverse (10122511), we get a palindrome (21644612).

The spelling of 11522101 in words is "eleven million, five hundred twenty-two thousand, one hundred one".