2011021120005 has 32 divisors (see below), whose sum is σ = 3219668103168. Its totient is φ = 1071866760000.

The previous prime is 2011021119997. The next prime is 2011021120013. The reversal of 2011021120005 is 5000211201102.

It is an interprime number because it is at equal distance from previous prime (2011021119997) and next prime (2011021120013).

It is not a de Polignac number, because 2011021120005 - 2³ = 2011021119997 is a prime.

It is a super-2 number, since 2×2011021120005² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233103502 + ... + 233112128.

It is an arithmetic number, because the mean of its divisors is an integer number (100614628224).

Almost surely, 2^{2011021120005} is an apocalyptic number.

It is an amenable number.

2011021120005 is a deficient number, since it is larger than the sum of its proper divisors (1208646983163).

2011021120005 is a wasteful number, since it uses less digits than its factorization.

2011021120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 2011021120005 its reverse (5000211201102), we get a palindrome (7011232321107).

The spelling of 2011021120005 in words is "two trillion, eleven billion, twenty-one million, one hundred twenty thousand, five".