11211225436 has 6 divisors (see below), whose sum is σ = 19619644520. Its totient is φ = 5605612716.

The previous prime is 11211225419. The next prime is 11211225437. The reversal of 11211225436 is 63452211211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211225437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401403176 + ... + 1401403183.

Almost surely, 2^11211225436 is an apocalyptic number.

It is an amenable number.

11211225436 is a deficient number, since it is larger than the sum of its proper divisors (8408419084).

11211225436 is a wasteful number, since it uses less digits than its factorization.

11211225436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802806363 (or 2802806361 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

Adding to 11211225436 its reverse (63452211211), we get a palindrome (74663436647).

The spelling of 11211225436 in words is "eleven billion, two hundred eleven million, two hundred twenty-five thousand, four hundred thirty-six".