11121121010 has 8 divisors (see below), whose sum is σ = 20018017836. Its totient is φ = 4448448400.

The previous prime is 11121121007. The next prime is 11121121019. The reversal of 11121121010 is 1012112111.

It can be written as a sum of positive squares in 2 ways, for example, as 10561467361 + 559653649 = 102769^2 + 23657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11121120982 and 11121121000.

It is not an unprimeable number, because it can be changed into a prime (11121121019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556056041 + ... + 556056060.

Almost surely, 2^11121121010 is an apocalyptic number.

11121121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121121010 is a deficient number, since it is larger than the sum of its proper divisors (8896896826).

11121121010 is a wasteful number, since it uses less digits than its factorization.

11121121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112112108.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11121121010 its reverse (1012112111), we get a palindrome (12133233121).

The spelling of 11121121010 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, ten".