102111000210 has 48 divisors (see below), whose sum is σ = 267838083864. Its totient is φ = 26988627456.

The previous prime is 102111000209. The next prime is 102111000227. The reversal of 102111000210 is 12000111201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46942855569 + 55168144641 = 216663^2 + 234879^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102111000192 and 102111000201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5010037 + ... + 5030376.

Almost surely, 2^102111000210 is an apocalyptic number.

102111000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111000210 is an abundant number, since it is smaller than the sum of its proper divisors (165727083654).

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

102111000210 is a wasteful number, since it uses less digits than its factorization.

102111000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040539 (or 10040536 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102111000210 its reverse (12000111201), we get a palindrome (114111111411).

The spelling of 102111000210 in words is "one hundred two billion, one hundred eleven million, two hundred ten", and thus it is an aban number.