102211031111 has 4 divisors (see below), whose sum is σ = 116812606992. Its totient is φ = 87609455232.

The previous prime is 102211031099. The next prime is 102211031119. The reversal of 102211031111 is 111130112201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111130112201 = 251 ⋅442749451.

It is a cyclic number.

It is not a de Polignac number, because 102211031111 - 2¹⁰ = 102211030087 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 (102211031119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7300787930 + ... + 7300787943.

It is an arithmetic number, because the mean of its divisors is an integer number (29203151748).

Almost surely, 2^102211031111 is an apocalyptic number.

102211031111 is a deficient number, since it is larger than the sum of its proper divisors (14601575881).

102211031111 is an equidigital number, since it uses as much as digits as its factorization.

102211031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14601575880.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 102211031111 its reverse (111130112201), we get a palindrome (213341143312).

The spelling of 102211031111 in words is "one hundred two billion, two hundred eleven million, thirty-one thousand, one hundred eleven".