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20122301301021 = 3217131518309157
BaseRepresentation
bin1001001001101000101101…
…00111110000000100011101
32122020200011202221022200100
410210310112213300010131
510114140433113113041
6110444020235251313
74144534245644463
oct444642647600435
978220152838610
1020122301301021
116458902551727
12230ba05ba9b39
13b2c6a91aa48a
144d7cd3090833
1524d661db86b6
hex124d169f011d

20122301301021 has 12 divisors (see below), whose sum is σ = 30775284342972. Its totient is φ = 12625757678976.

The previous prime is 20122301301019. The next prime is 20122301301023. The reversal of 20122301301021 is 12010310322102.

20122301301021 is a `hidden beast` number, since 20 + 1 + 22 + 301 + 301 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (20122301301019) and next prime (20122301301023).

It can be written as a sum of positive squares in 2 ways, for example, as 7147976544900 + 12974324756121 = 2673570^2 + 3601989^2 .

It is not a de Polignac number, because 20122301301021 - 21 = 20122301301019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122301300985 and 20122301301003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122301301023) 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, 65759154426 + ... + 65759154731.

It is an arithmetic number, because the mean of its divisors is an integer number (2564607028581).

Almost surely, 220122301301021 is an apocalyptic number.

It is an amenable number.

20122301301021 is a deficient number, since it is larger than the sum of its proper divisors (10652983041951).

20122301301021 is a wasteful number, since it uses less digits than its factorization.

20122301301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131518309180 (or 131518309177 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20122301301021 its reverse (12010310322102), we get a palindrome (32132611623123).

The spelling of 20122301301021 in words is "twenty trillion, one hundred twenty-two billion, three hundred one million, three hundred one thousand, twenty-one".

Divisors: 1 3 9 17 51 153 131518309157 394554927471 1183664782413 2235811255669 6707433767007 20122301301021