211121002010 has 16 divisors (see below), whose sum is σ = 384287668200. Its totient is φ = 83499542016.

The previous prime is 211121001997. The next prime is 211121002031. The reversal of 211121002010 is 10200121112.

211121002010 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 103292174881 + 107828827129 = 321391^2 + 328373^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211121001982 and 211121002000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118606415 + ... + 118608194.

Almost surely, 2^211121002010 is an apocalyptic number.

211121002010 is a deficient number, since it is larger than the sum of its proper divisors (173166666190).

211121002010 is a wasteful number, since it uses less digits than its factorization.

211121002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237214705.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211121002010 its reverse (10200121112), we get a palindrome (221321123122).

The spelling of 211121002010 in words is "two hundred eleven billion, one hundred twenty-one million, two thousand, ten".