2011012021112 has 8 divisors (see below), whose sum is σ = 3770647539600. Its totient is φ = 1005506010552.

The previous prime is 2011012021013. The next prime is 2011012021133. The reversal of 2011012021112 is 2111202101102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2011012021112² (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 as a sum of consecutive naturals, namely, 125688251312 + ... + 125688251327.

It is an arithmetic number, because the mean of its divisors is an integer number (471330942450).

Almost surely, 2^{2011012021112} is an apocalyptic number.

It is an amenable number.

2011012021112 is a deficient number, since it is larger than the sum of its proper divisors (1759635518488).

2011012021112 is a wasteful number, since it uses less digits than its factorization.

2011012021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251376502645 (or 251376502641 counting only the distinct ones).

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

Adding to 2011012021112 its reverse (2111202101102), we get a palindrome (4122214122214).

The spelling of 2011012021112 in words is "two trillion, eleven billion, twelve million, twenty-one thousand, one hundred twelve".