102102121110220 has 96 divisors (see below), whose sum is σ = 267326236348416. Its totient is φ = 31823523552000.

The previous prime is 102102121110139. The next prime is 102102121110221. The reversal of 102102121110220 is 22011121201201.

It is a junction number, because it is equal to n+sod(n) for n = 102102121110194 and 102102121110203.

It is not an unprimeable number, because it can be changed into a prime (102102121110221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101061894 + ... + 102067186.

It is an arithmetic number, because the mean of its divisors is an integer number (2784648295296).

Almost surely, 2^{102102121110220} is an apocalyptic number.

102102121110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102121110220 is an abundant number, since it is smaller than the sum of its proper divisors (165224115238196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102121110220 is a wasteful number, since it uses less digits than its factorization.

102102121110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071271 (or 1071269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102102121110220 its reverse (22011121201201), we get a palindrome (124113242311421).

The spelling of 102102121110220 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".