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12120012010122 = 2338814231123017
BaseRepresentation
bin1011000001011110100100…
…0000101011001010001010
31120220122212110211220002020
42300113221000223022022
53042033241033310442
641435505011545310
72360433124165602
oct260275100531212
946818773756066
1012120012010122
1139530828a2345
121438b335bb236
1369bbb2220723
142dc87c76dc02
15160408e999ec
hexb05e902b28a

12120012010122 has 32 divisors (see below), whose sum is σ = 24252197606784. Its totient is φ = 4037975596800.

The previous prime is 12120012010111. The next prime is 12120012010123. The reversal of 12120012010122 is 22101021002121.

It is a super-2 number, since 2×121200120101222 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12120012010123) 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, 98461558 + ... + 98584574.

It is an arithmetic number, because the mean of its divisors is an integer number (757881175212).

Almost surely, 212120012010122 is an apocalyptic number.

12120012010122 is an abundant number, since it is smaller than the sum of its proper divisors (12132185596662).

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

12120012010122 is a wasteful number, since it uses less digits than its factorization.

12120012010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131134.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12120012010122 its reverse (22101021002121), we get a palindrome (34221033012243).

The spelling of 12120012010122 in words is "twelve trillion, one hundred twenty billion, twelve million, ten thousand, one hundred twenty-two".

Divisors: 1 2 3 6 3881 4231 7762 8462 11643 12693 23286 25386 123017 246034 369051 738102 16420511 32841022 49261533 98523066 477428977 520484927 954857954 1040969854 1432286931 1561454781 2864573862 3122909562 2020002001687 4040004003374 6060006005061 12120012010122