2011001012 has 6 divisors (see below), whose sum is σ = 3519251778. Its totient is φ = 1005500504.

The previous prime is 2011000963. The next prime is 2011001033. The reversal of 2011001012 is 2101001102.

It can be written as a sum of positive squares in only one way, i.e., 1961072656 + 49928356 = 44284^2 + 7066^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251375123 + ... + 251375130.

It is an arithmetic number, because the mean of its divisors is an integer number (586541963).

Almost surely, 2^2011001012 is an apocalyptic number.

It is an amenable number.

2011001012 is a deficient number, since it is larger than the sum of its proper divisors (1508250766).

2011001012 is a wasteful number, since it uses less digits than its factorization.

2011001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502750257 (or 502750255 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2011001012 is about 44844.1859330728. The cubic root of 2011001012 is about 1262.2268950416.

Adding to 2011001012 its reverse (2101001102), we get a palindrome (4112002114).

The spelling of 2011001012 in words is "two billion, eleven million, one thousand, twelve".