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12012012212202 = 2324327756026699
BaseRepresentation
bin1010111011001100001110…
…1110001000111111101010
31120112100002210011201010200
42232303003232020333222
53033301100111242302
641314124153253030
72346560601101232
oct256630356107752
946470083151120
1012012012212202
1139112a1817702
121420012704176
1369196023bb62
142d7555098cc2
1515c6d77a481c
hexaecc3b88fea

12012012212202 has 48 divisors (see below), whose sum is σ = 26727425181600. Its totient is φ = 3896768899296.

The previous prime is 12012012212173. The next prime is 12012012212219. The reversal of 12012012212202 is 20221221021021.

It is a happy number.

12012012212202 is a `hidden beast` number, since 1 + 20 + 1 + 201 + 221 + 220 + 2 = 666.

It is a super-4 number, since 4×120120122122024 (a number of 53 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27798952 + ... + 28227747.

It is an arithmetic number, because the mean of its divisors is an integer number (556821357950).

Almost surely, 212012012212202 is an apocalyptic number.

12012012212202 is an abundant number, since it is smaller than the sum of its proper divisors (14715412969398).

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

12012012212202 is a wasteful number, since it uses less digits than its factorization.

12012012212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56027027 (or 56027024 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12012012212202 its reverse (20221221021021), we get a palindrome (32233233233223).

The spelling of 12012012212202 in words is "twelve trillion, twelve billion, twelve million, two hundred twelve thousand, two hundred two".

Divisors: 1 2 3 6 9 18 43 86 129 258 277 387 554 774 831 1662 2493 4986 11911 23822 35733 71466 107199 214398 56026699 112053398 168080097 336160194 504240291 1008480582 2409148057 4818296114 7227444171 14454888342 15519395623 21682332513 31038791246 43364665026 46558186869 93116373738 139674560607 279349121214 667334011789 1334668023578 2002002035367 4004004070734 6006006106101 12012012212202