12123111210222 has 32 divisors (see below), whose sum is σ = 24300568396800. Its totient is φ = 4031980348608.

The previous prime is 12123111210209. The next prime is 12123111210241. The reversal of 12123111210222 is 22201211132121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56485029 + ... + 56699247.

It is an arithmetic number, because the mean of its divisors is an integer number (759392762400).

Almost surely, 2^{12123111210222} is an apocalyptic number.

12123111210222 is an abundant number, since it is smaller than the sum of its proper divisors (12177457186578).

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

12123111210222 is a wasteful number, since it uses less digits than its factorization.

12123111210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235320.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12123111210222 its reverse (22201211132121), we get a palindrome (34324322342343).

The spelling of 12123111210222 in words is "twelve trillion, one hundred twenty-three billion, one hundred eleven million, two hundred ten thousand, two hundred twenty-two".