212102112221222 has 8 divisors (see below), whose sum is σ = 318162056144016. Its totient is φ = 106048093506552.

The previous prime is 212102112221221. The next prime is 212102112221269. The reversal of 212102112221222 is 222122211201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102112221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481212538 + ... + 1481355725.

It is an arithmetic number, because the mean of its divisors is an integer number (39770257018002).

Almost surely, 2^{212102112221222} is an apocalyptic number.

212102112221222 is a deficient number, since it is larger than the sum of its proper divisors (106059943922794).

212102112221222 is a wasteful number, since it uses less digits than its factorization.

212102112221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962604062.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212102112221222 its reverse (222122211201212), we get a palindrome (434224323422434).

The spelling of 212102112221222 in words is "two hundred twelve trillion, one hundred two billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".