211110002005 has 32 divisors (see below), whose sum is σ = 299820953088. Its totient is φ = 139701369600.

The previous prime is 211110001979. The next prime is 211110002099. The reversal of 211110002005 is 500200011112.

It is not a de Polignac number, because 211110002005 - 2⁹ = 211110001493 is a prime.

It is a super-2 number, since 2×211110002005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819681 + ... + 1045990.

It is an arithmetic number, because the mean of its divisors is an integer number (9369404784).

Almost surely, 2^211110002005 is an apocalyptic number.

It is an amenable number.

211110002005 is a deficient number, since it is larger than the sum of its proper divisors (88710951083).

211110002005 is a wasteful number, since it uses less digits than its factorization.

211110002005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865797.

The product of its (nonzero) digits is 20, while the sum is 13.

Adding to 211110002005 its reverse (500200011112), we get a palindrome (711310013117).

The spelling of 211110002005 in words is "two hundred eleven billion, one hundred ten million, two thousand, five".