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112020212012021 = 2938940289246469
BaseRepresentation
bin11001011110000110111100…
…111100011101001111110101
3112200122000202011212020010222
4121132012330330131033311
5104140314343233341041
61034125212554224125
732411123165345435
oct3136067474351765
9480560664766128
10112020212012021
1132769561357845
1210692326425045
134a675cb112051
141d93b42d042c5
15ce3d81d8974b
hex65e1bcf1d3f5

112020212012021 has 16 divisors (see below), whose sum is σ = 116184232710000. Its totient is φ = 107876291045376.

The previous prime is 112020212011973. The next prime is 112020212012053. The reversal of 112020212012021 is 120210212020211.

It can be written as a sum of positive squares in 8 ways, for example, as 25479780062500 + 86540431949521 = 5047750^2 + 9302711^2 .

It is a cyclic number.

It is not a de Polignac number, because 112020212012021 - 26 = 112020212011957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020212012081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454376975 + ... + 454623443.

It is an arithmetic number, because the mean of its divisors is an integer number (7261514544375).

Almost surely, 2112020212012021 is an apocalyptic number.

It is an amenable number.

112020212012021 is a deficient number, since it is larger than the sum of its proper divisors (4164020697979).

112020212012021 is a wasteful number, since it uses less digits than its factorization.

112020212012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287176.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112020212012021 its reverse (120210212020211), we get a palindrome (232230424032232).

The spelling of 112020212012021 in words is "one hundred twelve trillion, twenty billion, two hundred twelve million, twelve thousand, twenty-one".

Divisors: 1 29 389 11281 40289 246469 1168381 7147601 15672421 95876441 454500209 2780416789 9929989541 287969696689 3862765931449 112020212012021