11221210424 has 32 divisors (see below), whose sum is σ = 21399390000. Its totient is φ = 5515437312.

The previous prime is 11221210387. The next prime is 11221210471. The reversal of 11221210424 is 42401212211.

It is a junction number, because it is equal to n+sod(n) for n = 11221210396 and 11221210405.

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, 77627 + ... + 168725.

Almost surely, 2^11221210424 is an apocalyptic number.

It is an amenable number.

11221210424 is a deficient number, since it is larger than the sum of its proper divisors (10178179576).

11221210424 is a wasteful number, since it uses less digits than its factorization.

11221210424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91367 (or 91363 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11221210424 its reverse (42401212211), we get a palindrome (53622422635).

The spelling of 11221210424 in words is "eleven billion, two hundred twenty-one million, two hundred ten thousand, four hundred twenty-four".