11001211223211 has 48 divisors (see below), whose sum is σ = 17358489937152. Its totient is φ = 6658464513600.

The previous prime is 11001211223203. The next prime is 11001211223309. The reversal of 11001211223211 is 11232211210011.

It is a happy number.

11001211223211 is a `hidden beast` number, since 1 + 100 + 121 + 122 + 321 + 1 = 666.

It is not a de Polignac number, because 11001211223211 - 2³ = 11001211223203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11001211223411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270326181 + ... + 270366873.

It is an arithmetic number, because the mean of its divisors is an integer number (361635207024).

Almost surely, 2^{11001211223211} is an apocalyptic number.

11001211223211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001211223211 is a deficient number, since it is larger than the sum of its proper divisors (6357278713941).

11001211223211 is a wasteful number, since it uses less digits than its factorization.

11001211223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44304 (or 44301 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11001211223211 its reverse (11232211210011), we get a palindrome (22233422433222).

The spelling of 11001211223211 in words is "eleven trillion, one billion, two hundred eleven million, two hundred twenty-three thousand, two hundred eleven".