1111134220 has 24 divisors (see below), whose sum is σ = 2666722464. Its totient is φ = 380960256.

The previous prime is 1111134187. The next prime is 1111134223. The reversal of 1111134220 is 224311111.

It is a junction number, because it is equal to n+sod(n) for n = 1111134194 and 1111134203.

It is not an unprimeable number, because it can be changed into a prime (1111134223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3968197 + ... + 3968476.

It is an arithmetic number, because the mean of its divisors is an integer number (111113436).

Almost surely, 2^1111134220 is an apocalyptic number.

1111134220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111134220 is an abundant number, since it is smaller than the sum of its proper divisors (1555588244).

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

1111134220 is a wasteful number, since it uses less digits than its factorization.

1111134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936689 (or 7936687 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1111134220 is about 33333.6799648644. The cubic root of 1111134220 is about 1035.7513490706.

Adding to 1111134220 its reverse (224311111), we get a palindrome (1335445331).

The spelling of 1111134220 in words is "one billion, one hundred eleven million, one hundred thirty-four thousand, two hundred twenty".