211121202011110 has 64 divisors (see below), whose sum is σ = 388862078825088. Its totient is φ = 82497268998144.

The previous prime is 211121202011051. The next prime is 211121202011113. The reversal of 211121202011110 is 11110202121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121202011113) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 269049094 + ... + 269832646.

It is an arithmetic number, because the mean of its divisors is an integer number (6075969981642).

Almost surely, 2^{211121202011110} is an apocalyptic number.

211121202011110 is a deficient number, since it is larger than the sum of its proper divisors (177740876813978).

211121202011110 is a wasteful number, since it uses less digits than its factorization.

211121202011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785809.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 211121202011110 its reverse (11110202121112), we get a palindrome (222231404132222).

The spelling of 211121202011110 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred two million, eleven thousand, one hundred ten".