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212200001210020 = 225127351123794733
BaseRepresentation
bin110000001111111010101001…
…101100011000011010100100
31000211100010021221021022200211
4300033322221230120122210
5210303141100302210040
62031151200151345204
762460641563504015
oct6017725154303244
91024303257238624
10212200001210020
116168257370546a
121b971947082204
1391534b3302605
143a5876b91b00c
15197ec205c28ea
hexc0fea9b186a4

212200001210020 has 48 divisors (see below), whose sum is σ = 449256760823808. Its totient is φ = 84187665394560.

The previous prime is 212200001210009. The next prime is 212200001210081. The reversal of 212200001210020 is 20012100002212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2979427 + ... + 20815306.

It is an arithmetic number, because the mean of its divisors is an integer number (9359515850496).

Almost surely, 2212200001210020 is an apocalyptic number.

212200001210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200001210020 is an abundant number, since it is smaller than the sum of its proper divisors (237056759613788).

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

212200001210020 is a wasteful number, since it uses less digits than its factorization.

212200001210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23798380 (or 23798378 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212200001210020 its reverse (20012100002212), we get a palindrome (232212101212232).

The spelling of 212200001210020 in words is "two hundred twelve trillion, two hundred billion, one million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 3511 7022 14044 17555 35110 70220 445897 891794 1783588 2229485 4458970 8917940 23794733 47589466 95178932 118973665 237947330 475894660 3021931091 6043862182 12087724364 15109655455 30219310910 60438621820 83543307563 167086615126 334173230252 417716537815 835433075630 1670866151260 10610000060501 21220000121002 42440000242004 53050000302505 106100000605010 212200001210020