11212101100005 has 64 divisors (see below), whose sum is σ = 19540815840000. Its totient is φ = 5456545155072.

The previous prime is 11212101100001. The next prime is 11212101100043. The reversal of 11212101100005 is 50000110121211.

It is not a de Polignac number, because 11212101100005 - 2² = 11212101100001 is a prime.

It is a super-2 number, since 2×11212101100005² (a number of 27 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 (11212101100001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78876886 + ... + 79018904.

It is an arithmetic number, because the mean of its divisors is an integer number (305325247500).

Almost surely, 2^{11212101100005} is an apocalyptic number.

11212101100005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212101100005 is a deficient number, since it is larger than the sum of its proper divisors (8328714739995).

11212101100005 is a wasteful number, since it uses less digits than its factorization.

11212101100005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146678.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 11212101100005 its reverse (50000110121211), we get a palindrome (61212211221216).

The spelling of 11212101100005 in words is "eleven trillion, two hundred twelve billion, one hundred one million, one hundred thousand, five".