12111210122222 has 8 divisors (see below), whose sum is σ = 18589299257496. Its totient is φ = 5914777036392.

The previous prime is 12111210122191. The next prime is 12111210122237. The reversal of 12111210122222 is 22222101211121.

12111210122222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12111210122222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12111210122194 and 12111210122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70414012253 + ... + 70414012424.

It is an arithmetic number, because the mean of its divisors is an integer number (2323662407187).

Almost surely, 2^{12111210122222} is an apocalyptic number.

12111210122222 is a deficient number, since it is larger than the sum of its proper divisors (6478089135274).

12111210122222 is a wasteful number, since it uses less digits than its factorization.

12111210122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140828024722.

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

Adding to 12111210122222 its reverse (22222101211121), we get a palindrome (34333311333343).

The spelling of 12111210122222 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty-two".