11102172170111 has 16 divisors (see below), whose sum is σ = 12827387797920. Its totient is φ = 9496600750080.

The previous prime is 11102172170087. The next prime is 11102172170129. The reversal of 11102172170111 is 11107127120111.

It is a cyclic number.

It is not a de Polignac number, because 11102172170111 - 2¹⁴ = 11102172153727 is a prime.

It is a super-2 number, since 2×11102172170111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102172176111) 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, 7385546 + ... + 8760743.

It is an arithmetic number, because the mean of its divisors is an integer number (801711737370).

Almost surely, 2^{11102172170111} is an apocalyptic number.

11102172170111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11102172170111 is a deficient number, since it is larger than the sum of its proper divisors (1725215627809).

11102172170111 is a wasteful number, since it uses less digits than its factorization.

11102172170111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16149994.

The product of its (nonzero) digits is 196, while the sum is 26.

Adding to 11102172170111 its reverse (11107127120111), we get a palindrome (22209299290222).

The spelling of 11102172170111 in words is "eleven trillion, one hundred two billion, one hundred seventy-two million, one hundred seventy thousand, one hundred eleven".