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12202201222212 = 2235917234747489
BaseRepresentation
bin1011000110010000101111…
…0111101000110001000100
31121012112000101100110111110
42301210023313220301010
53044410102003102322
641541340332005020
72366402631026001
oct261441367506104
947175011313443
1012202201222212
113984a1952a911
121450a50600770
136a687ca7a7c1
143028381788a8
15162619753c0c
hexb190bde8c44

12202201222212 has 24 divisors (see below), whose sum is σ = 28954375783200. Its totient is φ = 3998461417216.

The previous prime is 12202201222207. The next prime is 12202201222217. The reversal of 12202201222212 is 21222210220221.

It is an interprime number because it is at equal distance from previous prime (12202201222207) and next prime (12202201222217).

It is not an unprimeable number, because it can be changed into a prime (12202201222217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8617373037 + ... + 8617374452.

It is an arithmetic number, because the mean of its divisors is an integer number (1206432324300).

Almost surely, 212202201222212 is an apocalyptic number.

12202201222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12202201222212 is an abundant number, since it is smaller than the sum of its proper divisors (16752174560988).

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

12202201222212 is a wasteful number, since it uses less digits than its factorization.

12202201222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17234747555 (or 17234747553 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12202201222212 its reverse (21222210220221), we get a palindrome (33424411442433).

The spelling of 12202201222212 in words is "twelve trillion, two hundred two billion, two hundred one million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 17234747489 34469494978 51704242467 68938989956 103408484934 206816969868 1016850101851 2033700203702 3050550305553 4067400407404 6101100611106 12202201222212