1212210112112 has 20 divisors (see below), whose sum is σ = 2348772257496. Its totient is φ = 606075336000.

The previous prime is 1212210112103. The next prime is 1212210112153. The reversal of 1212210112112 is 2112110122121.

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, 1519139 + ... + 2175362.

Almost surely, 2^{1212210112112} is an apocalyptic number.

It is an amenable number.

1212210112112 is a deficient number, since it is larger than the sum of its proper divisors (1136562145384).

1212210112112 is a wasteful number, since it uses less digits than its factorization.

1212210112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715016 (or 3715010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1212210112112 its reverse (2112110122121), we get a palindrome (3324320234233).

The spelling of 1212210112112 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twelve thousand, one hundred twelve".