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102112211210 = 2510211221121
BaseRepresentation
bin101111100011001011…
…1001011000100001010
3100202120101010210022112
41133012113023010022
53133111211224320
6114524255022322
710243302321452
oct1370627130412
9322511123275
10102112211210
113a33a7546a9
121795920a9a2
1398242b4769
144d297a8d62
1529c98b4ec5
hex17c65cb10a

102112211210 has 8 divisors (see below), whose sum is σ = 183801980196. Its totient is φ = 40844884480.

The previous prime is 102112211191. The next prime is 102112211281. The reversal of 102112211210 is 12112211201.

It can be written as a sum of positive squares in 2 ways, for example, as 101571602209 + 540609001 = 318703^2 + 23251^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105610551 + ... + 5105610570.

Almost surely, 2102112211210 is an apocalyptic number.

102112211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102112211210 is a deficient number, since it is larger than the sum of its proper divisors (81689768986).

102112211210 is a wasteful number, since it uses less digits than its factorization.

102112211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211221128.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102112211210 its reverse (12112211201), we get a palindrome (114224422411).

Subtracting from 102112211210 its reverse (12112211201), we obtain a palindrome (90000000009).

The spelling of 102112211210 in words is "one hundred two billion, one hundred twelve million, two hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 10211221121 20422442242 51056105605 102112211210