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212200202002212 = 223249750111848117
BaseRepresentation
bin110000001111111010110101…
…101010010101111100100100
31000211100010210221002121210200
4300033322311222111330210
5210303142003203032322
62031151232123150500
762460646552301004
oct6017726552257444
91024303727077720
10212200202002212
1161682666a89626
121b9719a2375430
139153515aa6368
143a5878a468004
15197ec330368ac
hexc0feb5a95f24

212200202002212 has 36 divisors (see below), whose sum is σ = 536396078512476. Its totient is φ = 70733252520000.

The previous prime is 212200202002199. The next prime is 212200202002219.

212200202002212 is a `hidden beast` number, since 2 + 1 + 220 + 0 + 20 + 200 + 221 + 2 = 666.

212200202002212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 143207509360356 + 68992692641856 = 11966934^2 + 8306184^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (212200202002219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11985978 + ... + 23834094.

It is an arithmetic number, because the mean of its divisors is an integer number (14899891069791).

Almost surely, 2212200202002212 is an apocalyptic number.

It is an amenable number.

212200202002212 is an abundant number, since it is smaller than the sum of its proper divisors (324195876510264).

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

212200202002212 is a wasteful number, since it uses less digits than its factorization.

212200202002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345628 (or 12345623 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

It can be divided in two parts, 21220020 and 2002212, that added together give a palindrome (23222232).

The spelling of 212200202002212 in words is "two hundred twelve trillion, two hundred billion, two hundred two million, two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 497501 995002 1492503 1990004 2985006 4477509 5970012 8955018 11848117 17910036 23696234 35544351 47392468 71088702 106633053 142177404 213266106 426532212 5894450055617 11788900111234 17683350166851 23577800222468 35366700333702 53050050500553 70733400667404 106100101001106 212200202002212