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12012012212203 = 174616551233969
BaseRepresentation
bin1010111011001100001110…
…1110001000111111101011
31120112100002210011201010201
42232303003232020333223
53033301100111242303
641314124153253031
72346560601101233
oct256630356107753
946470083151121
1012012012212203
1139112a1817703
121420012704177
1369196023bb63
142d7555098cc3
1515c6d77a481d
hexaecc3b88feb

12012012212203 has 16 divisors (see below), whose sum is σ = 12748190495040. Its totient is φ = 11279129344000.

The previous prime is 12012012212173. The next prime is 12012012212219. The reversal of 12012012212203 is 30221221021021.

It is a cyclic number.

It is not a de Polignac number, because 12012012212203 - 25 = 12012012212171 is a prime.

It is a super-2 number, since 2×120120122122032 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012012212243) 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, 51223203 + ... + 51457171.

It is an arithmetic number, because the mean of its divisors is an integer number (796761905940).

Almost surely, 212012012212203 is an apocalyptic number.

12012012212203 is a deficient number, since it is larger than the sum of its proper divisors (736178282837).

12012012212203 is a wasteful number, since it uses less digits than its factorization.

12012012212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240998.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12012012212203 its reverse (30221221021021), we get a palindrome (42233233233224).

The spelling of 12012012212203 in words is "twelve trillion, twelve billion, twelve million, two hundred twelve thousand, two hundred three".

Divisors: 1 17 461 6551 7837 111367 233969 3020011 3977473 51340187 107859709 1532730919 1833615053 26056425623 706588953659 12012012212203