112212103121 has 2 divisors, whose sum is σ = 112212103122. Its totient is φ = 112212103120.

The previous prime is 112212103111. The next prime is 112212103123. The reversal of 112212103121 is 121301212211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97881379600 + 14330723521 = 312860^2 + 119711^2 .

It is a cyclic number.

It is not a de Polignac number, because 112212103121 - 2⁶ = 112212103057 is a prime.

It is a super-5 number, since 5×112212103121⁵ (a number of 56 digits) contains 55555 as substring.

Together with 112212103123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112212103121.

It is not a weakly prime, because it can be changed into another prime (112212103123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106051560 + 56106051561.

It is an arithmetic number, because the mean of its divisors is an integer number (56106051561).

Almost surely, 2^112212103121 is an apocalyptic number.

It is an amenable number.

112212103121 is a deficient number, since it is larger than the sum of its proper divisors (1).

112212103121 is an equidigital number, since it uses as much as digits as its factorization.

112212103121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 112212103121 its reverse (121301212211), we get a palindrome (233513315332).

The spelling of 112212103121 in words is "one hundred twelve billion, two hundred twelve million, one hundred three thousand, one hundred twenty-one".