102111012210 has 32 divisors (see below), whose sum is σ = 259482102912. Its totient is φ = 25627861760.

The previous prime is 102111012203. The next prime is 102111012233. The reversal of 102111012210 is 12210111201.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100108326 + ... + 100109345.

It is an arithmetic number, because the mean of its divisors is an integer number (8108815716).

Almost surely, 2^102111012210 is an apocalyptic number.

102111012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111012210 is an abundant number, since it is smaller than the sum of its proper divisors (157371090702).

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

102111012210 is a wasteful number, since it uses less digits than its factorization.

102111012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200217698.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102111012210 its reverse (12210111201), we get a palindrome (114321123411).

The spelling of 102111012210 in words is "one hundred two billion, one hundred eleven million, twelve thousand, two hundred ten".