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12011210020012 = 227827787765851
BaseRepresentation
bin1010111011001001001111…
…1010000001010010101100
31120112021000212201010022211
42232302103322001102230
53033242424231120022
641313512415420204
72346531660424420
oct256622372012254
946467025633284
1012011210020012
113910a1aa19855
12141ba29b24664
13691862c9c218
142d74ba71cb80
1515c68c147e77
hexaec93e814ac

12011210020012 has 48 divisors (see below), whose sum is σ = 24054886372608. Its totient is φ = 5140706155200.

The previous prime is 12011210019979. The next prime is 12011210020013. The reversal of 12011210020012 is 21002001211021.

It is a super-2 number, since 2×120112100200122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011210019974 and 12011210020001.

It is not an unprimeable number, because it can be changed into a prime (12011210020013) 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, 182366887 + ... + 182432737.

It is an arithmetic number, because the mean of its divisors is an integer number (501143466096).

Almost surely, 212011210020012 is an apocalyptic number.

It is an amenable number.

12011210020012 is an abundant number, since it is smaller than the sum of its proper divisors (12043676352596).

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

12011210020012 is a wasteful number, since it uses less digits than its factorization.

12011210020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74566 (or 74564 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011210020012 its reverse (21002001211021), we get a palindrome (33013211231033).

The spelling of 12011210020012 in words is "twelve trillion, eleven billion, two hundred ten million, twenty thousand, twelve".

Divisors: 1 2 4 7 14 28 827 1654 3308 5789 7877 11578 15754 23156 31508 55139 65851 110278 131702 220556 263404 460957 921914 1843828 6514279 13028558 26057116 45599953 54458777 91199906 108917554 182399812 217835108 381211439 518708327 762422878 1037416654 1524845756 2074833308 3630958289 7261916578 14523833156 428971786429 857943572858 1715887145716 3002802505003 6005605010006 12011210020012