12121112120222 has 8 divisors (see below), whose sum is σ = 20779049348976. Its totient is φ = 5194762337232.

The previous prime is 12121112120189. The next prime is 12121112120237. The reversal of 12121112120222 is 22202121112121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12121112120194 and 12121112120203.

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, 432896861423 + ... + 432896861450.

It is an arithmetic number, because the mean of its divisors is an integer number (2597381168622).

Almost surely, 2^{12121112120222} is an apocalyptic number.

12121112120222 is a deficient number, since it is larger than the sum of its proper divisors (8657937228754).

12121112120222 is an equidigital number, since it uses as much as digits as its factorization.

12121112120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865793722882.

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

Adding to 12121112120222 its reverse (22202121112121), we get a palindrome (34323233232343).

It can be divided in two parts, 1212111 and 2120222, that added together give a palindrome (3332333).

The spelling of 12121112120222 in words is "twelve trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty-two".