2001111201212 has 12 divisors (see below), whose sum is σ = 3502148810160. Its totient is φ = 1000497255456.

The previous prime is 2001111201181. The next prime is 2001111201253. The reversal of 2001111201212 is 2121021111002.

It is a super-2 number, since 2×2001111201212² (a number of 25 digits) contains 22 as substring.

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, 14509073 + ... + 14646344.

It is an arithmetic number, because the mean of its divisors is an integer number (291845734180).

Almost surely, 2^{2001111201212} is an apocalyptic number.

It is an amenable number.

2001111201212 is a deficient number, since it is larger than the sum of its proper divisors (1501037608948).

2001111201212 is a wasteful number, since it uses less digits than its factorization.

2001111201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29172580 (or 29172578 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2001111201212 its reverse (2121021111002), we get a palindrome (4122132312214).

The spelling of 2001111201212 in words is "two trillion, one billion, one hundred eleven million, two hundred one thousand, two hundred twelve".