212221122110 has 32 divisors (see below), whose sum is σ = 387665287200. Its totient is φ = 83635847680.

The previous prime is 212221122077. The next prime is 212221122151. The reversal of 212221122110 is 11221122212.

It is a super-3 number, since 3×212221122110³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174200 + ... + 674379.

It is an arithmetic number, because the mean of its divisors is an integer number (12114540225).

Almost surely, 2^212221122110 is an apocalyptic number.

212221122110 is a deficient number, since it is larger than the sum of its proper divisors (175444165090).

212221122110 is a wasteful number, since it uses less digits than its factorization.

212221122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848956.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212221122110 its reverse (11221122212), we get a palindrome (223442244322).

The spelling of 212221122110 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred ten".