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130022202121 = 7214917808821
BaseRepresentation
bin111100100010111101…
…1010101101100001001
3110102121110201020012121
41321011323111230021
54112241140431441
6135421551011241
712252033324400
oct1710573255411
9412543636177
10130022202121
1150162163999
1221248209b21
13c351679396
146416408637
1535aec9bdd1
hex1e45ed5b09

130022202121 has 12 divisors (see below), whose sum is σ = 152265428100. Its totient is φ = 110699625120.

The previous prime is 130022202047. The next prime is 130022202137. The reversal of 130022202121 is 121202220031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71184908025 + 58837294096 = 266805^2 + 242564^2 .

It is not a de Polignac number, because 130022202121 - 27 = 130022201993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130022202095 and 130022202104.

It is not an unprimeable number, because it can be changed into a prime (130022202721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8897110 + ... + 8911711.

It is an arithmetic number, because the mean of its divisors is an integer number (12688785675).

Almost surely, 2130022202121 is an apocalyptic number.

It is an amenable number.

130022202121 is a deficient number, since it is larger than the sum of its proper divisors (22243225979).

130022202121 is a wasteful number, since it uses less digits than its factorization.

130022202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17808984 (or 17808977 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 130022202121 its reverse (121202220031), we get a palindrome (251224422152).

The spelling of 130022202121 in words is "one hundred thirty billion, twenty-two million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 7 49 149 1043 7301 17808821 124661747 872632229 2653514329 18574600303 130022202121