11221011122111 has 8 divisors (see below), whose sum is σ = 12827275019904. Its totient is φ = 9615562801560.

The previous prime is 11221011122093. The next prime is 11221011122131. The reversal of 11221011122111 is 11122111012211.

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 11221011122111 - 2¹⁴ = 11221011105727 is a prime.

It is a super-2 number, since 2×11221011122111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221011122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221011122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203864825 + ... + 203919858.

It is an arithmetic number, because the mean of its divisors is an integer number (1603409377488).

Almost surely, 2^{11221011122111} is an apocalyptic number.

11221011122111 is a deficient number, since it is larger than the sum of its proper divisors (1606263897793).

11221011122111 is an equidigital number, since it uses as much as digits as its factorization.

11221011122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407788621.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11221011122111 its reverse (11122111012211), we get a palindrome (22343122134322).

The spelling of 11221011122111 in words is "eleven trillion, two hundred twenty-one billion, eleven million, one hundred twenty-two thousand, one hundred eleven".