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20450222665241 is a prime number
BaseRepresentation
bin1001010011001011100000…
…10000011110111000011001
32200102000121011211121120012
410221211300100132320121
510140024024000241431
6111254411432211305
74210323403362305
oct451456020367031
980360534747505
1020450222665241
116574988616146
122363482239b35
13b545a8853675
14509b20552d05
15256e5595922b
hex12997041ee19

20450222665241 has 2 divisors, whose sum is σ = 20450222665242. Its totient is φ = 20450222665240.

The previous prime is 20450222665199. The next prime is 20450222665247. The reversal of 20450222665241 is 14256622205402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19583908487641 + 866314177600 = 4425371^2 + 930760^2 .

It is a cyclic number.

It is not a de Polignac number, because 20450222665241 - 26 = 20450222665177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20450222665247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225111332620 + 10225111332621.

It is an arithmetic number, because the mean of its divisors is an integer number (10225111332621).

Almost surely, 220450222665241 is an apocalyptic number.

It is an amenable number.

20450222665241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450222665241 is an equidigital number, since it uses as much as digits as its factorization.

20450222665241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 20450222665241 in words is "twenty trillion, four hundred fifty billion, two hundred twenty-two million, six hundred sixty-five thousand, two hundred forty-one".