11210212005 has 32 divisors (see below), whose sum is σ = 18508065408. Its totient is φ = 5790336000.

The previous prime is 11210212001. The next prime is 11210212019. The reversal of 11210212005 is 50021201211.

It is not a de Polignac number, because 11210212005 - 2² = 11210212001 is a prime.

It is a super-2 number, since 2×11210212005² (a number of 21 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 not an unprimeable number, because it can be changed into a prime (11210212001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17730 + ... + 150780.

It is an arithmetic number, because the mean of its divisors is an integer number (578377044).

Almost surely, 2^11210212005 is an apocalyptic number.

11210212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11210212005 is a deficient number, since it is larger than the sum of its proper divisors (7297853403).

11210212005 is a wasteful number, since it uses less digits than its factorization.

11210212005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133237.

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

Adding to 11210212005 its reverse (50021201211), we get a palindrome (61231413216).

The spelling of 11210212005 in words is "eleven billion, two hundred ten million, two hundred twelve thousand, five".