11211121010 has 8 divisors (see below), whose sum is σ = 20180017836. Its totient is φ = 4484448400.

The previous prime is 11211121003. The next prime is 11211121063. The reversal of 11211121010 is 1012111211.

It can be written as a sum of positive squares in 2 ways, for example, as 9294695281 + 1916425729 = 96409^2 + 43777^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11211120982 and 11211121000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560556041 + ... + 560556060.

Almost surely, 2^11211121010 is an apocalyptic number.

11211121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211121010 is a deficient number, since it is larger than the sum of its proper divisors (8968896826).

11211121010 is a wasteful number, since it uses less digits than its factorization.

11211121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121112108.

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

Adding to 11211121010 its reverse (1012111211), we get a palindrome (12223232221).

The spelling of 11211121010 in words is "eleven billion, two hundred eleven million, one hundred twenty-one thousand, ten".