12212111102222 has 16 divisors (see below), whose sum is σ = 18405831289344. Its totient is φ = 6076836675000.

The previous prime is 12212111102189. The next prime is 12212111102231. The reversal of 12212111102222 is 22220111121221.

It is a junction number, because it is equal to n+sod(n) for n = 12212111102194 and 12212111102203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8649347 + ... + 9961697.

It is an arithmetic number, because the mean of its divisors is an integer number (1150364455584).

Almost surely, 2^{12212111102222} is an apocalyptic number.

12212111102222 is a deficient number, since it is larger than the sum of its proper divisors (6193720187122).

12212111102222 is a wasteful number, since it uses less digits than its factorization.

12212111102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334615.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212111102222 its reverse (22220111121221), we get a palindrome (34432222223443).

The spelling of 12212111102222 in words is "twelve trillion, two hundred twelve billion, one hundred eleven million, one hundred two thousand, two hundred twenty-two".