1220110011 has 24 divisors (see below), whose sum is σ = 1825824000. Its totient is φ = 784207872.

The previous prime is 1220109991. The next prime is 1220110013. The reversal of 1220110011 is 1100110221.

It is a happy number.

It is not a de Polignac number, because 1220110011 - 2¹³ = 1220101819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1220109975 and 1220110002.

It is not an unprimeable number, because it can be changed into a prime (1220110013) 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, 197670 + ... + 203748.

It is an arithmetic number, because the mean of its divisors is an integer number (76076000).

Almost surely, 2^1220110011 is an apocalyptic number.

1220110011 is a deficient number, since it is larger than the sum of its proper divisors (605713989).

1220110011 is a wasteful number, since it uses less digits than its factorization.

1220110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883 (or 6880 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1220110011 is about 34930.0731605303. The cubic root of 1220110011 is about 1068.5618466765.

Adding to 1220110011 its reverse (1100110221), we get a palindrome (2320220232).

The spelling of 1220110011 in words is "one billion, two hundred twenty million, one hundred ten thousand, eleven".