11011121210 has 16 divisors (see below), whose sum is σ = 19946263176. Its totient is φ = 4376394048.

The previous prime is 11011121201. The next prime is 11011121237. The reversal of 11011121210 is 1212111011.

It can be written as a sum of positive squares in 4 ways, for example, as 9609292729 + 1401828481 = 98027^2 + 37441^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11011121191 and 11011121200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3505157 + ... + 3508296.

Almost surely, 2^11011121210 is an apocalyptic number.

11011121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11011121210 is a deficient number, since it is larger than the sum of its proper divisors (8935141966).

11011121210 is a wasteful number, since it uses less digits than its factorization.

11011121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013617.

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

Adding to 11011121210 its reverse (1212111011), we get a palindrome (12223232221).

The spelling of 11011121210 in words is "eleven billion, eleven million, one hundred twenty-one thousand, two hundred ten".