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BaseRepresentation
bin111100101000111010…
…1101000010101011101
3110110010101201122120102
41321101311220111131
54113143320012341
6135453450030445
712260011003421
oct1712165502535
9413111648512
10130222032221
1150254a40236
12212a3118425
13c383ba4248
146434b84b81
1535c25c0c9b
hex1e51d6855d

130222032221 has 4 divisors (see below), whose sum is σ = 130236986652. Its totient is φ = 130207077792.

The previous prime is 130222032203. The next prime is 130222032223. The reversal of 130222032221 is 122230222031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107197308100 + 23024724121 = 327410^2 + 151739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130222032221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130222032193 and 130222032202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222032223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7464146 + ... + 7481571.

It is an arithmetic number, because the mean of its divisors is an integer number (32559246663).

Almost surely, 2130222032221 is an apocalyptic number.

It is an amenable number.

130222032221 is a deficient number, since it is larger than the sum of its proper divisors (14954431).

130222032221 is an equidigital number, since it uses as much as digits as its factorization.

130222032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14954430.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 130222032221 its reverse (122230222031), we get a palindrome (252452254252).

The spelling of 130222032221 in words is "one hundred thirty billion, two hundred twenty-two million, thirty-two thousand, two hundred twenty-one".

Divisors: 1 8713 14945717 130222032221