102121110110 has 32 divisors (see below), whose sum is σ = 190630972800. Its totient is φ = 39341478400.

The previous prime is 102121110109. The next prime is 102121110127. The reversal of 102121110110 is 11011121201.

It is a super-2 number, since 2×102121110110² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121110091 and 102121110100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322790 + ... + 555369.

It is an arithmetic number, because the mean of its divisors is an integer number (5957217900).

Almost surely, 2^102121110110 is an apocalyptic number.

102121110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121110110 is a deficient number, since it is larger than the sum of its proper divisors (88509862690).

102121110110 is a wasteful number, since it uses less digits than its factorization.

102121110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878596.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102121110110 its reverse (11011121201), we get a palindrome (113132231311).

The spelling of 102121110110 in words is "one hundred two billion, one hundred twenty-one million, one hundred ten thousand, one hundred ten".