102021210110 has 16 divisors (see below), whose sum is σ = 183651473232. Its totient is φ = 40805529600.

The previous prime is 102021210013. The next prime is 102021210119. The reversal of 102021210110 is 11012120201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102021210091 and 102021210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021210119) 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, 221456 + ... + 503075.

It is an arithmetic number, because the mean of its divisors is an integer number (11478217077).

Almost surely, 2^102021210110 is an apocalyptic number.

102021210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021210110 is a deficient number, since it is larger than the sum of its proper divisors (81630263122).

102021210110 is a wasteful number, since it uses less digits than its factorization.

102021210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738619.

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

Adding to 102021210110 its reverse (11012120201), we get a palindrome (113033330311).

The spelling of 102021210110 in words is "one hundred two billion, twenty-one million, two hundred ten thousand, one hundred ten".