102112111120210 has 8 divisors (see below), whose sum is σ = 183801800016396. Its totient is φ = 40844844448080.

The previous prime is 102112111120199. The next prime is 102112111120211. The reversal of 102112111120210 is 12021111211201.

It can be written as a sum of positive squares in 2 ways, for example, as 102014585451529 + 97525668681 = 10100227^2 + 312291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102112111120210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102112111120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105605556001 + ... + 5105605556020.

Almost surely, 2^{102112111120210} is an apocalyptic number.

102112111120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102112111120210 is a deficient number, since it is larger than the sum of its proper divisors (81689688896186).

102112111120210 is a wasteful number, since it uses less digits than its factorization.

102112111120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211211112028.

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

Adding to 102112111120210 its reverse (12021111211201), we get a palindrome (114133222331411).

Subtracting from 102112111120210 its reverse (12021111211201), we obtain a palindrome (90090999909009).

It can be divided in two parts, 102112111 and 120210, that added together give a square (102232321 = 10111²).

The spelling of 102112111120210 in words is "one hundred two trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty thousand, two hundred ten".