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130022312221 is a prime number
BaseRepresentation
bin111100100010111101…
…1110000100100011101
3110102121110220211020101
41321011323300210131
54112241202442341
6135421553221101
712252034263364
oct1710573604435
9412543824211
10130022312221
115016222968a
1221248261791
13c3516b7529
1464164367db
1535aecbe831
hex1e45ef091d

130022312221 has 2 divisors, whose sum is σ = 130022312222. Its totient is φ = 130022312220.

The previous prime is 130022312183. The next prime is 130022312227. The reversal of 130022312221 is 122213220031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111766519225 + 18255792996 = 334315^2 + 135114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130022312221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130022312227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65011156110 + 65011156111.

It is an arithmetic number, because the mean of its divisors is an integer number (65011156111).

Almost surely, 2130022312221 is an apocalyptic number.

It is an amenable number.

130022312221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130022312221 is an equidigital number, since it uses as much as digits as its factorization.

130022312221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 130022312221 its reverse (122213220031), we get a palindrome (252235532252).

The spelling of 130022312221 in words is "one hundred thirty billion, twenty-two million, three hundred twelve thousand, two hundred twenty-one".