11112122001211 has 64 divisors (see below), whose sum is σ = 13979182694400. Its totient is φ = 8581015296000.

The previous prime is 11112122001107. The next prime is 11112122001221. The reversal of 11112122001211 is 11210022121111.

It is not a de Polignac number, because 11112122001211 - 2³³ = 11103532066619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112122001221) 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, 8128837650 + ... + 8128839016.

It is an arithmetic number, because the mean of its divisors is an integer number (218424729600).

Almost surely, 2^{11112122001211} is an apocalyptic number.

11112122001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11112122001211 is a deficient number, since it is larger than the sum of its proper divisors (2867060693189).

11112122001211 is a wasteful number, since it uses less digits than its factorization.

11112122001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11112122001211 its reverse (11210022121111), we get a palindrome (22322144122322).

The spelling of 11112122001211 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-two million, one thousand, two hundred eleven".