11220644430 has 24 divisors (see below), whose sum is σ = 29173675752. Its totient is φ = 2992171824.

The previous prime is 11220644429. The next prime is 11220644431. The reversal of 11220644430 is 3444602211.

It is a happy number.

11220644430 is a `hidden beast` number, since 1 + 1 + 220 + 6 + 4 + 4 + 430 = 666.

It is an interprime number because it is at equal distance from previous prime (11220644429) and next prime (11220644431).

It is a super-2 number, since 2×11220644430² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220644394 and 11220644403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220644431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62336824 + ... + 62337003.

It is an arithmetic number, because the mean of its divisors is an integer number (1215569823).

Almost surely, 2^11220644430 is an apocalyptic number.

11220644430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220644430 is an abundant number, since it is smaller than the sum of its proper divisors (17953031322).

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

11220644430 is a wasteful number, since it uses less digits than its factorization.

11220644430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124673840 (or 124673837 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 11220644430 in words is "eleven billion, two hundred twenty million, six hundred forty-four thousand, four hundred thirty".