211112221210 has 16 divisors (see below), whose sum is σ = 414547634592. Its totient is φ = 76768080400.

The previous prime is 211112221157. The next prime is 211112221211. The reversal of 211112221210 is 12122211112.

It is not an unprimeable number, because it can be changed into a prime (211112221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959600896 + ... + 959601115.

It is an arithmetic number, because the mean of its divisors is an integer number (25909227162).

Almost surely, 2^211112221210 is an apocalyptic number.

211112221210 is a deficient number, since it is larger than the sum of its proper divisors (203435413382).

211112221210 is a wasteful number, since it uses less digits than its factorization.

211112221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919202029.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211112221210 its reverse (12122211112), we get a palindrome (223234432322).

The spelling of 211112221210 in words is "two hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, two hundred ten".