11220422031 has 24 divisors (see below), whose sum is σ = 19947418400. Its totient is φ = 5918463936.

The previous prime is 11220421997. The next prime is 11220422039. The reversal of 11220422031 is 13022402211.

It is a happy number.

11220422031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220422031 - 2¹¹ = 11220419983 is a prime.

It is a super-2 number, since 2×11220422031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220421995 and 11220422013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220422039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6849256 + ... + 6850893.

Almost surely, 2^11220422031 is an apocalyptic number.

11220422031 is a deficient number, since it is larger than the sum of its proper divisors (8726996369).

11220422031 is a wasteful number, since it uses less digits than its factorization.

11220422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13700175 (or 13700172 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11220422031 its reverse (13022402211), we get a palindrome (24242824242).

The spelling of 11220422031 in words is "eleven billion, two hundred twenty million, four hundred twenty-two thousand, thirty-one".