102012021110 has 16 divisors (see below), whose sum is σ = 183673324656. Its totient is φ = 40793322528.

The previous prime is 102012021103. The next prime is 102012021121. The reversal of 102012021110 is 11120210201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102012021091 and 102012021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398392 + ... + 1469531.

It is an arithmetic number, because the mean of its divisors is an integer number (11479582791).

Almost surely, 2^102012021110 is an apocalyptic number.

102012021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102012021110 is a deficient number, since it is larger than the sum of its proper divisors (81661303546).

102012021110 is a wasteful number, since it uses less digits than its factorization.

102012021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871487.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102012021110 its reverse (11120210201), we get a palindrome (113132231311).

The spelling of 102012021110 in words is "one hundred two billion, twelve million, twenty-one thousand, one hundred ten".