2011122004 has 12 divisors (see below), whose sum is σ = 3528901684. Its totient is φ = 1002864384.

The previous prime is 2011121929. The next prime is 2011122011. The reversal of 2011122004 is 4002211102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1742227600 + 268894404 = 41740^2 + 16398^2 .

It is a super-2 number, since 2×2011122004² = 8089223429945952032, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 672477 + ... + 675460.

Almost surely, 2^2011122004 is an apocalyptic number.

It is an amenable number.

2011122004 is a deficient number, since it is larger than the sum of its proper divisors (1517779680).

2011122004 is a wasteful number, since it uses less digits than its factorization.

2011122004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348314 (or 1348312 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2011122004 is about 44845.5349393895. The cubic root of 2011122004 is about 1262.2522085203.

Adding to 2011122004 its reverse (4002211102), we get a palindrome (6013333106).

The spelling of 2011122004 in words is "two billion, eleven million, one hundred twenty-two thousand, four".