2001112001212 has 24 divisors (see below), whose sum is σ = 3542345730000. Its totient is φ = 989019901056.

The previous prime is 2001112001179. The next prime is 2001112001227. The reversal of 2001112001212 is 2121002111002.

It is a junction number, because it is equal to n+sod(n) for n = 2001112001192 and 2001112001201.

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, 367539 + ... + 2034037.

It is an arithmetic number, because the mean of its divisors is an integer number (147597738750).

Almost surely, 2^{2001112001212} is an apocalyptic number.

It is an amenable number.

2001112001212 is a deficient number, since it is larger than the sum of its proper divisors (1541233728788).

2001112001212 is a wasteful number, since it uses less digits than its factorization.

2001112001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669965 (or 1669963 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2001112001212 its reverse (2121002111002), we get a palindrome (4122114112214).

The spelling of 2001112001212 in words is "two trillion, one billion, one hundred twelve million, one thousand, two hundred twelve".