212212100111210 has 64 divisors (see below), whose sum is σ = 402597392601600. Its totient is φ = 80314968033792.

The previous prime is 212212100111197. The next prime is 212212100111243. The reversal of 212212100111210 is 12111001212212.

It is a super-2 number, since 2×212212100111210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3111260927 + ... + 3111329133.

It is an arithmetic number, because the mean of its divisors is an integer number (6290584259400).

Almost surely, 2^{212212100111210} is an apocalyptic number.

212212100111210 is a deficient number, since it is larger than the sum of its proper divisors (190385292490390).

212212100111210 is a wasteful number, since it uses less digits than its factorization.

212212100111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88815.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212212100111210 its reverse (12111001212212), we get a palindrome (224323101323422).

The spelling of 212212100111210 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred million, one hundred eleven thousand, two hundred ten".