102102120111 has 8 divisors (see below), whose sum is σ = 136223826480. Its totient is φ = 68024246912.

The previous prime is 102102120103. The next prime is 102102120121. The reversal of 102102120111 is 111021201201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102102120111 - 2³ = 102102120103 is a prime.

It is a super-2 number, since 2×102102120111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10952856 + ... + 10962173.

It is an arithmetic number, because the mean of its divisors is an integer number (17027978310).

Almost surely, 2^102102120111 is an apocalyptic number.

102102120111 is a deficient number, since it is larger than the sum of its proper divisors (34121706369).

102102120111 is a wasteful number, since it uses less digits than its factorization.

102102120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21916585.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102102120111 its reverse (111021201201), we get a palindrome (213123321312).

The spelling of 102102120111 in words is "one hundred two billion, one hundred two million, one hundred twenty thousand, one hundred eleven".