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212333122020 = 22355286166947
BaseRepresentation
bin1100010111000000001…
…0100101000111100100
3202022001212020012100110
43011300002211013210
511434324234401040
6241313335413020
721224545520655
oct3056002450744
9668055205313
10212333122020
118206056a328
1235199b24170
131703b4aa806
14a3c405552c
1557cb097980
hex31700a51e4

212333122020 has 48 divisors (see below), whose sum is σ = 594552869568. Its totient is φ = 56620248960.

The previous prime is 212333122003. The next prime is 212333122021. The reversal of 212333122020 is 20221333212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212333122021) 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, 3138187 + ... + 3205133.

It is an arithmetic number, because the mean of its divisors is an integer number (12386518116).

Almost surely, 2212333122020 is an apocalyptic number.

212333122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212333122020 is an abundant number, since it is smaller than the sum of its proper divisors (382219747548).

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

212333122020 is a wasteful number, since it uses less digits than its factorization.

212333122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119820 (or 119818 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212333122020 its reverse (20221333212), we get a palindrome (232554455232).

The spelling of 212333122020 in words is "two hundred twelve billion, three hundred thirty-three million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 52861 66947 105722 133894 158583 200841 211444 264305 267788 317166 334735 401682 528610 634332 669470 792915 803364 1004205 1057220 1338940 1585830 2008410 3171660 4016820 3538885367 7077770734 10616656101 14155541468 17694426835 21233312202 35388853670 42466624404 53083280505 70777707340 106166561010 212333122020