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130230122022221 = 1373475812884109
BaseRepresentation
bin11101100111000110010000…
…001010011000010101001101
3122002002212201010012020122212
4131213012100022120111031
5114032142242214202341
61140550520411320205
736300546553500314
oct3547062012302515
9562085633166585
10130230122022221
113854a314875571
1212733578450065
135788856320940
1424232589ad27b
15100c8b71eb5eb
hex76719029854d

130230122022221 has 16 divisors (see below), whose sum is σ = 142172064012720. Its totient is φ = 118563141864960.

The previous prime is 130230122022181. The next prime is 130230122022239. The reversal of 130230122022221 is 122220221032031.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1272521619721 + 128957600402500 = 1128061^2 + 11355950^2 .

It is a de Polignac number, because none of the positive numbers 2k-130230122022221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130230122028221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43712315 + ... + 46596423.

It is an arithmetic number, because the mean of its divisors is an integer number (8885754000795).

Almost surely, 2130230122022221 is an apocalyptic number.

It is an amenable number.

130230122022221 is a deficient number, since it is larger than the sum of its proper divisors (11941941990499).

130230122022221 is a wasteful number, since it uses less digits than its factorization.

130230122022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931776.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 130230122022221 its reverse (122220221032031), we get a palindrome (252450343054252).

The spelling of 130230122022221 in words is "one hundred thirty trillion, two hundred thirty billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty-one".

Divisors: 1 13 73 949 47581 618553 2884109 3473413 37493417 45154369 210539957 2737019441 137228790329 1783974274277 10017701694017 130230122022221