102102244111 has 4 divisors (see below), whose sum is σ = 116688278992. Its totient is φ = 87516209232.

The previous prime is 102102244081. The next prime is 102102244157. The reversal of 102102244111 is 111442201201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111442201201 = 211 ⋅528162091.

It is a cyclic number.

It is not a de Polignac number, because 102102244111 - 2⁷ = 102102243983 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 (102102245111) 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, 7293017430 + ... + 7293017443.

It is an arithmetic number, because the mean of its divisors is an integer number (29172069748).

Almost surely, 2^102102244111 is an apocalyptic number.

102102244111 is a deficient number, since it is larger than the sum of its proper divisors (14586034881).

102102244111 is an equidigital number, since it uses as much as digits as its factorization.

102102244111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14586034880.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102102244111 its reverse (111442201201), we get a palindrome (213544445312).

The spelling of 102102244111 in words is "one hundred two billion, one hundred two million, two hundred forty-four thousand, one hundred eleven".