11112001211 has 8 divisors (see below), whose sum is σ = 11698222800. Its totient is φ = 10525917600.

The previous prime is 11112001207. The next prime is 11112001217. The reversal of 11112001211 is 11210021111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11112001211 - 2² = 11112001207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112001192 and 11112001201.

It is not an unprimeable number, because it can be changed into a prime (11112001217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158585 + ... + 217653.

It is an arithmetic number, because the mean of its divisors is an integer number (1462277850).

Almost surely, 2^11112001211 is an apocalyptic number.

11112001211 is a deficient number, since it is larger than the sum of its proper divisors (586221589).

11112001211 is an equidigital number, since it uses as much as digits as its factorization.

11112001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68989.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11112001211 its reverse (11210021111), we get a palindrome (22322022322).

The spelling of 11112001211 in words is "eleven billion, one hundred twelve million, one thousand, two hundred eleven".