112121210112212 has 24 divisors (see below), whose sum is σ = 224818878910080. Its totient is φ = 47928420329760.

The previous prime is 112121210112203. The next prime is 112121210112217. The reversal of 112121210112212 is 212211012121211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121210112217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5146941464 + ... + 5146963247.

It is an arithmetic number, because the mean of its divisors is an integer number (9367453287920).

Almost surely, 2^{112121210112212} is an apocalyptic number.

It is an amenable number.

112121210112212 is an abundant number, since it is smaller than the sum of its proper divisors (112697668797868).

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

112121210112212 is a wasteful number, since it uses less digits than its factorization.

112121210112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10293905111 (or 10293905109 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 112121210112212 its reverse (212211012121211), we get a palindrome (324332222233423).

The spelling of 112121210112212 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred twelve".