212122211110 has 16 divisors (see below), whose sum is σ = 389024131536. Its totient is φ = 83247961888.

The previous prime is 212122211107. The next prime is 212122211123. The reversal of 212122211110 is 11112221212.

It is a congruent number.

It is an unprimeable number.

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, 200114764 + ... + 200115823.

It is an arithmetic number, because the mean of its divisors is an integer number (24314008221).

Almost surely, 2^212122211110 is an apocalyptic number.

212122211110 is a deficient number, since it is larger than the sum of its proper divisors (176901920426).

212122211110 is a wasteful number, since it uses less digits than its factorization.

212122211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400230647.

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

Adding to 212122211110 its reverse (11112221212), we get a palindrome (223234432322).

It can be divided in two parts, 21212 and 2211110, that added together give a palindrome (2232322).

The spelling of 212122211110 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, one hundred ten".