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12120010011012 = 2235711768828081
BaseRepresentation
bin1011000001011110100011…
…1001000011000110000100
31120220122212100002022211010
42300113220321003012010
53042033240030323022
641435504501042220
72360433101201361
oct260275071030604
946818770068733
1012120010011012
113953081757392
121438b329b6370
1369bbb19a0817
142dc87c3ad468
15160408c0250c
hexb05e8e43184

12120010011012 has 24 divisors (see below), whose sum is σ = 28329550561312. Its totient is φ = 4032928022400.

The previous prime is 12120010011007. The next prime is 12120010011059. The reversal of 12120010011012 is 21011001002121.

It is a super-2 number, since 2×121200100110122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884407189 + ... + 884420892.

Almost surely, 212120010011012 is an apocalyptic number.

12120010011012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120010011012 is an abundant number, since it is smaller than the sum of its proper divisors (16209540550300).

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

12120010011012 is a wasteful number, since it uses less digits than its factorization.

12120010011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768828659 (or 1768828657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12120010011012 its reverse (21011001002121), we get a palindrome (33131011013133).

The spelling of 12120010011012 in words is "twelve trillion, one hundred twenty billion, ten million, eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 571 1142 1713 2284 3426 6852 1768828081 3537656162 5306484243 7075312324 10612968486 21225936972 1010000834251 2020001668502 3030002502753 4040003337004 6060005005506 12120010011012