1223130456636 has 24 divisors (see below), whose sum is σ = 3113422980864. Its totient is φ = 370645592880.

The previous prime is 1223130456623. The next prime is 1223130456659. The reversal of 1223130456636 is 6366540313221.

It is a super-2 number, since 2×1223130456636² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4633069780 + ... + 4633070043.

It is an arithmetic number, because the mean of its divisors is an integer number (129725957536).

Almost surely, 2^{1223130456636} is an apocalyptic number.

It is an amenable number.

1223130456636 is an abundant number, since it is smaller than the sum of its proper divisors (1890292524228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223130456636 is a wasteful number, since it uses less digits than its factorization.

1223130456636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266139841 (or 9266139839 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

Adding to 1223130456636 its reverse (6366540313221), we get a palindrome (7589670769857).

The spelling of 1223130456636 in words is "one trillion, two hundred twenty-three billion, one hundred thirty million, four hundred fifty-six thousand, six hundred thirty-six".