11522422237 has 4 divisors (see below), whose sum is σ = 11522660320. Its totient is φ = 11522184156.

The previous prime is 11522422213. The next prime is 11522422243. The reversal of 11522422237 is 73222422511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11522422237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11522422199 and 11522422208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522422207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17673 + ... + 152830.

It is an arithmetic number, because the mean of its divisors is an integer number (2880665080).

Almost surely, 2^11522422237 is an apocalyptic number.

It is an amenable number.

11522422237 is a deficient number, since it is larger than the sum of its proper divisors (238083).

11522422237 is an equidigital number, since it uses as much as digits as its factorization.

11522422237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238082.

The product of its digits is 13440, while the sum is 31.

Adding to 11522422237 its reverse (73222422511), we get a palindrome (84744844748).

The spelling of 11522422237 in words is "eleven billion, five hundred twenty-two million, four hundred twenty-two thousand, two hundred thirty-seven".