212212121110 has 64 divisors (see below), whose sum is σ = 421514108928. Its totient is φ = 76280400000.

The previous prime is 212212121081. The next prime is 212212121119. The reversal of 212212121110 is 11121212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212121119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6995275 + ... + 7025545.

It is an arithmetic number, because the mean of its divisors is an integer number (6586157952).

Almost surely, 2^212212121110 is an apocalyptic number.

212212121110 is a deficient number, since it is larger than the sum of its proper divisors (209301987818).

212212121110 is a wasteful number, since it uses less digits than its factorization.

212212121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31021.

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

Adding to 212212121110 its reverse (11121212212), we get a palindrome (223333333322).

The spelling of 212212121110 in words is "two hundred twelve billion, two hundred twelve million, one hundred twenty-one thousand, one hundred ten".