11111022011211 has 16 divisors (see below), whose sum is σ = 15717207552000. Its totient is φ = 6962231773728.

The previous prime is 11111022011161. The next prime is 11111022011233. The reversal of 11111022011211 is 11211022011111.

It is not a de Polignac number, because 11111022011211 - 2²⁵ = 11110988456779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111022011251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767434536 + ... + 767449013.

It is an arithmetic number, because the mean of its divisors is an integer number (982325472000).

Almost surely, 2^{11111022011211} is an apocalyptic number.

11111022011211 is a deficient number, since it is larger than the sum of its proper divisors (4606185540789).

11111022011211 is a wasteful number, since it uses less digits than its factorization.

11111022011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534883698.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111022011211 its reverse (11211022011111), we get a palindrome (22322044022322).

The spelling of 11111022011211 in words is "eleven trillion, one hundred eleven billion, twenty-two million, eleven thousand, two hundred eleven".