11002111220111 has 16 divisors (see below), whose sum is σ = 12671493020160. Its totient is φ = 9447385207680.

The previous prime is 11002111220101. The next prime is 11002111220131. The reversal of 11002111220111 is 11102211120011.

It is a cyclic number.

It is not a de Polignac number, because 11002111220111 - 2¹⁸ = 11002110957967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002111220101) 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, 78032951 + ... + 78173816.

It is an arithmetic number, because the mean of its divisors is an integer number (791968313760).

Almost surely, 2^{11002111220111} is an apocalyptic number.

11002111220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11002111220111 is a deficient number, since it is larger than the sum of its proper divisors (1669381800049).

11002111220111 is a wasteful number, since it uses less digits than its factorization.

11002111220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156207134.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11002111220111 its reverse (11102211120011), we get a palindrome (22104322340122).

The spelling of 11002111220111 in words is "eleven trillion, two billion, one hundred eleven million, two hundred twenty thousand, one hundred eleven".