11100111012211 has 4 divisors (see below), whose sum is σ = 11953965705472. Its totient is φ = 10246256318952.

The previous prime is 11100111012167. The next prime is 11100111012227. The reversal of 11100111012211 is 11221011100111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11100111012211 - 2²¹ = 11100108915059 is a prime.

It is a super-2 number, since 2×11100111012211² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 853854693247 = 11100111012211 / (1 + 1 + 1 + 0 + 0 + 1 + 1 + 1 + 0 + 1 + 2 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100111012191 and 11100111012200.

It is not an unprimeable number, because it can be changed into a prime (11100111012511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426927346611 + ... + 426927346636.

It is an arithmetic number, because the mean of its divisors is an integer number (2988491426368).

Almost surely, 2^{11100111012211} is an apocalyptic number.

11100111012211 is a deficient number, since it is larger than the sum of its proper divisors (853854693261).

11100111012211 is an equidigital number, since it uses as much as digits as its factorization.

11100111012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853854693260.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11100111012211 its reverse (11221011100111), we get a palindrome (22321122112322).

The spelling of 11100111012211 in words is "eleven trillion, one hundred billion, one hundred eleven million, twelve thousand, two hundred eleven".