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12200222221212 = 2234721631599683
BaseRepresentation
bin1011000110001001010111…
…1010010110001110011100
31121012022220110111210111010
42301202111322112032130
53044342023342034322
641540412115055220
72366302610553534
oct261422572261634
947168813453433
1012200222221212
1139840a34260a3
1214505998a1510
136a6625a764ac
143026cb3c84c4
15162550b3d20c
hexb1895e9639c

12200222221212 has 24 divisors (see below), whose sum is σ = 29072869975296. Its totient is φ = 3980214341488.

The previous prime is 12200222221211. The next prime is 12200222221277. The reversal of 12200222221212 is 21212222200221.

12200222221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200222221211) 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, 10815799278 + ... + 10815800405.

It is an arithmetic number, because the mean of its divisors is an integer number (1211369582304).

Almost surely, 212200222221212 is an apocalyptic number.

12200222221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12200222221212 is an abundant number, since it is smaller than the sum of its proper divisors (16872647754084).

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

12200222221212 is a wasteful number, since it uses less digits than its factorization.

12200222221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21631599737 (or 21631599735 counting only the distinct ones).

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

Adding to 12200222221212 its reverse (21212222200221), we get a palindrome (33412444421433).

The spelling of 12200222221212 in words is "twelve trillion, two hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 21631599683 43263199366 64894799049 86526398732 129789598098 259579196196 1016685185101 2033370370202 3050055555303 4066740740404 6100111110606 12200222221212