102122111101111 has 4 divisors (see below), whose sum is σ = 102122131321312. Its totient is φ = 102122090880912.

The previous prime is 102122111101081. The next prime is 102122111101141. The reversal of 102122111101111 is 111101111221201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102122111101081) and next prime (102122111101141).

It is a cyclic number.

It is not a de Polignac number, because 102122111101111 - 2³³ = 102113521166519 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 (102122111101141) 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, 4600051 + ... + 15013483.

It is an arithmetic number, because the mean of its divisors is an integer number (25530532830328).

Almost surely, 2^{102122111101111} is an apocalyptic number.

102122111101111 is a deficient number, since it is larger than the sum of its proper divisors (20220201).

102122111101111 is an equidigital number, since it uses as much as digits as its factorization.

102122111101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20220200.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 102122111101111 its reverse (111101111221201), we get a palindrome (213223222322312).

The spelling of 102122111101111 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred eleven million, one hundred one thousand, one hundred eleven".