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102220211213 = 293853408997
BaseRepresentation
bin101111100110011001…
…1001010010000001101
3100202211220100202110122
41133030303022100031
53133321333224323
6114543113514325
710246053313331
oct1371463122015
9322756322418
10102220211213
113a39570a6aa
12179894129a5
1398407996a3
144d39c7d7c1
1529d40e9ec8
hex17cccca40d

102220211213 has 8 divisors (see below), whose sum is σ = 102689581848. Its totient is φ = 101751660864.

The previous prime is 102220211209. The next prime is 102220211257. The reversal of 102220211213 is 312112022201.

It can be written as a sum of positive squares in 4 ways, for example, as 47390242249 + 54829968964 = 217693^2 + 234158^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102220211213 - 22 = 102220211209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220211191 and 102220211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220211813) 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, 45431 + ... + 454427.

It is an arithmetic number, because the mean of its divisors is an integer number (12836197731).

Almost surely, 2102220211213 is an apocalyptic number.

It is an amenable number.

102220211213 is a deficient number, since it is larger than the sum of its proper divisors (469370635).

102220211213 is an equidigital number, since it uses as much as digits as its factorization.

102220211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410143.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102220211213 its reverse (312112022201), we get a palindrome (414332233414).

The spelling of 102220211213 in words is "one hundred two billion, two hundred twenty million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 293 853 249929 408997 119836121 348874441 102220211213