1113221232220 has 48 divisors (see below), whose sum is σ = 2439899159040. Its totient is φ = 425842108736.

The previous prime is 1113221232209. The next prime is 1113221232223. The reversal of 1113221232220 is 222321223111.

It is a super-2 number, since 2×1113221232220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113221232191 and 1113221232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113221232223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2059521 + ... + 2543239.

It is an arithmetic number, because the mean of its divisors is an integer number (50831232480).

Almost surely, 2^{1113221232220} is an apocalyptic number.

1113221232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113221232220 is an abundant number, since it is smaller than the sum of its proper divisors (1326677926820).

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

1113221232220 is a wasteful number, since it uses less digits than its factorization.

1113221232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488754 (or 488752 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1113221232220 its reverse (222321223111), we get a palindrome (1335542455331).

The spelling of 1113221232220 in words is "one trillion, one hundred thirteen billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred twenty".