12101522 has 4 divisors (see below), whose sum is σ = 18152286. Its totient is φ = 6050760.

The previous prime is 12101477. The next prime is 12101527. The reversal of 12101522 is 22510121.

12101522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 11363641 + 737881 = 3371^2 + 859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101497 and 12101506.

It is not an unprimeable number, because it can be changed into a prime (12101527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025379 + ... + 3025382.

Almost surely, 2^12101522 is an apocalyptic number.

12101522 is a deficient number, since it is larger than the sum of its proper divisors (6050764).

12101522 is an equidigital number, since it uses as much as digits as its factorization.

12101522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050763.

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

The square root of 12101522 is about 3478.7241914242. The cubic root of 12101522 is about 229.5866678552.

Adding to 12101522 its reverse (22510121), we get a palindrome (34611643).

The spelling of 12101522 in words is "twelve million, one hundred one thousand, five hundred twenty-two".