12212212212210 has 16 divisors (see below), whose sum is σ = 29309309309376. Its totient is φ = 3256589923248.

The previous prime is 12212212212149. The next prime is 12212212212223. The reversal of 12212212212210 is 1221221221221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203536870174 + ... + 203536870233.

It is an arithmetic number, because the mean of its divisors is an integer number (1831831831836).

Almost surely, 2^{12212212212210} is an apocalyptic number.

12212212212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212212212210 is an abundant number, since it is smaller than the sum of its proper divisors (17097097097166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212212212210 is a wasteful number, since it uses less digits than its factorization.

12212212212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407073740417.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12212212212210 its reverse (1221221221221), we get a palindrome (13433433433431).

The spelling of 12212212212210 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, two hundred twelve thousand, two hundred ten".