13122236636 has 12 divisors (see below), whose sum is σ = 23704685760. Its totient is φ = 6349469280.

The previous prime is 13122236587. The next prime is 13122236639. The reversal of 13122236636 is 63663222131.

It is a junction number, because it is equal to n+sod(n) for n = 13122236596 and 13122236605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122236639) 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, 52912121 + ... + 52912368.

It is an arithmetic number, because the mean of its divisors is an integer number (1975390480).

Almost surely, 2^13122236636 is an apocalyptic number.

It is an amenable number.

13122236636 is a deficient number, since it is larger than the sum of its proper divisors (10582449124).

13122236636 is a wasteful number, since it uses less digits than its factorization.

13122236636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105824524 (or 105824522 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

Adding to 13122236636 its reverse (63663222131), we get a palindrome (76785458767).

The spelling of 13122236636 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-six thousand, six hundred thirty-six".