212012121111112 has 16 divisors (see below), whose sum is σ = 454311688095360. Its totient is φ = 90862337619024.

The previous prime is 212012121111053. The next prime is 212012121111137. The reversal of 212012121111112 is 211111121210212.

It is a self number, because there is not a number n which added to its sum of digits gives 212012121111112.

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, 1892965367008 + ... + 1892965367119.

It is an arithmetic number, because the mean of its divisors is an integer number (28394480505960).

Almost surely, 2^{212012121111112} is an apocalyptic number.

It is an amenable number.

212012121111112 is an abundant number, since it is smaller than the sum of its proper divisors (242299566984248).

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

212012121111112 is a wasteful number, since it uses less digits than its factorization.

212012121111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785930734140 (or 3785930734136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212012121111112 its reverse (211111121210212), we get a palindrome (423123242321324).

The spelling of 212012121111112 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twelve".