2001212012112 has 40 divisors (see below), whose sum is σ = 5185138385856. Its totient is φ = 665091227136.

The previous prime is 2001212012089. The next prime is 2001212012159. The reversal of 2001212012112 is 2112102121002.

It is a junction number, because it is equal to n+sod(n) for n = 2001212012091 and 2001212012100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61841268 + ... + 61873619.

Almost surely, 2^{2001212012112} is an apocalyptic number.

It is an amenable number.

2001212012112 is an abundant number, since it is smaller than the sum of its proper divisors (3183926373744).

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

2001212012112 is a wasteful number, since it uses less digits than its factorization.

2001212012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123715235 (or 123715229 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2001212012112 its reverse (2112102121002), we get a palindrome (4113314133114).

The spelling of 2001212012112 in words is "two trillion, one billion, two hundred twelve million, twelve thousand, one hundred twelve".