Search a number
-
+
102210210221 = 745073239729
BaseRepresentation
bin101111100110000110…
…1000000100110101101
3100202211012112122200112
41133030031000212231
53133311303211341
6114542115305405
710245602311040
oct1371415004655
9322735478615
10102210210221
113a38aaa9819
1217985bab265
13983b6a7542
144d387d8c57
1529d32c1aeb
hex17cc3409ad

102210210221 has 8 divisors (see below), whose sum is σ = 116837622720. Its totient is φ = 87589286208.

The previous prime is 102210210211. The next prime is 102210210227. The reversal of 102210210221 is 122012012201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102210210221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102210210196 and 102210210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210210227) 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, 1588316 + ... + 1651413.

It is an arithmetic number, because the mean of its divisors is an integer number (14604702840).

Almost surely, 2102210210221 is an apocalyptic number.

It is an amenable number.

102210210221 is a deficient number, since it is larger than the sum of its proper divisors (14627412499).

102210210221 is an equidigital number, since it uses as much as digits as its factorization.

102210210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244243.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102210210221 its reverse (122012012201), we get a palindrome (224222222422).

The spelling of 102210210221 in words is "one hundred two billion, two hundred ten million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 7 4507 31549 3239729 22678103 14601458603 102210210221