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12020001210220 = 225601000060511
BaseRepresentation
bin1010111011101001111111…
…1001101111111101101100
31120120002201112212212011011
42232322133321233331230
53033413430302211340
641321525021235004
72350262556336523
oct256723771577554
946502645785134
1012020001210220
113914721360103
121421682102a64
136926343cc313
142d7ab20db4ba
1515ca03d2a0ea
hexaee9fe6ff6c

12020001210220 has 12 divisors (see below), whose sum is σ = 25242002541504. Its totient is φ = 4808000484080.

The previous prime is 12020001210193. The next prime is 12020001210221. The reversal of 12020001210220 is 2201210002021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020001210220.

It is not an unprimeable number, because it can be changed into a prime (12020001210221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300500030236 + ... + 300500030275.

It is an arithmetic number, because the mean of its divisors is an integer number (2103500211792).

Almost surely, 212020001210220 is an apocalyptic number.

12020001210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020001210220 is an abundant number, since it is smaller than the sum of its proper divisors (13222001331284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12020001210220 is a wasteful number, since it uses less digits than its factorization.

12020001210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601000060520 (or 601000060518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12020001210220 its reverse (2201210002021), we get a palindrome (14221211212241).

The spelling of 12020001210220 in words is "twelve trillion, twenty billion, one million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 601000060511 1202000121022 2404000242044 3005000302555 6010000605110 12020001210220