211020111210 has 16 divisors (see below), whose sum is σ = 506448266976. Its totient is φ = 56272029648.

The previous prime is 211020111209. The next prime is 211020111229. The reversal of 211020111210 is 12111020112.

211020111210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 3517001824 + ... + 3517001883.

It is an arithmetic number, because the mean of its divisors is an integer number (31653016686).

Almost surely, 2^211020111210 is an apocalyptic number.

211020111210 is an abundant number, since it is smaller than the sum of its proper divisors (295428155766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211020111210 is a wasteful number, since it uses less digits than its factorization.

211020111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034003717.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211020111210 its reverse (12111020112), we get a palindrome (223131131322).

The spelling of 211020111210 in words is "two hundred eleven billion, twenty million, one hundred eleven thousand, two hundred ten".