2001111220212 has 48 divisors (see below), whose sum is σ = 5039784361920. Its totient is φ = 614336606208.

The previous prime is 2001111220187. The next prime is 2001111220243. The reversal of 2001111220212 is 2120221111002.

It is a super-2 number, since 2×2001111220212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001111220191 and 2001111220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14409037 + ... + 14547252.

It is an arithmetic number, because the mean of its divisors is an integer number (104995507540).

Almost surely, 2^{2001111220212} is an apocalyptic number.

It is an amenable number.

2001111220212 is an abundant number, since it is smaller than the sum of its proper divisors (3038673141708).

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

2001111220212 is a wasteful number, since it uses less digits than its factorization.

2001111220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28956752 (or 28956750 counting only the distinct ones).

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

Adding to 2001111220212 its reverse (2120221111002), we get a palindrome (4121332331214).

The spelling of 2001111220212 in words is "two trillion, one billion, one hundred eleven million, two hundred twenty thousand, two hundred twelve".