2001111101212 has 12 divisors (see below), whose sum is σ = 3501954449056. Its totient is φ = 1000552687200.

The previous prime is 2001111101107. The next prime is 2001111101219. The reversal of 2001111101212 is 2121011111002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001111101192 and 2001111101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001111101219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009128 + ... + 2835280.

Almost surely, 2^{2001111101212} is an apocalyptic number.

It is an amenable number.

2001111101212 is a deficient number, since it is larger than the sum of its proper divisors (1500843347844).

2001111101212 is a wasteful number, since it uses less digits than its factorization.

2001111101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431708 (or 1431706 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2001111101212 its reverse (2121011111002), we get a palindrome (4122122212214).

The spelling of 2001111101212 in words is "two trillion, one billion, one hundred eleven million, one hundred one thousand, two hundred twelve".