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212212331412 = 223257172139983
BaseRepresentation
bin1100010110100011010…
…1110011001110010100
3202021202102221101210020
43011220311303032110
511434102324101122
6241253342425140
721221551024524
oct3055065631624
9667672841706
10212212331412
1181aa9368584
12351655921b0
131701c467a93
14a3b1db1684
1557c0687c5c
hex3168d73394

212212331412 has 48 divisors (see below), whose sum is σ = 497390084352. Its totient is φ = 70419496960.

The previous prime is 212212331411. The next prime is 212212331417. The reversal of 212212331412 is 214133212212.

212212331412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212331411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5287573 + ... + 5327555.

It is an arithmetic number, because the mean of its divisors is an integer number (10362293424).

Almost surely, 2212212331412 is an apocalyptic number.

It is an amenable number.

212212331412 is an abundant number, since it is smaller than the sum of its proper divisors (285177752940).

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

212212331412 is a wasteful number, since it uses less digits than its factorization.

212212331412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41968 (or 41966 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 212212331412 its reverse (214133212212), we get a palindrome (426345543624).

The spelling of 212212331412 in words is "two hundred twelve billion, two hundred twelve million, three hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 257 514 771 1028 1542 1721 3084 3442 5163 6884 10326 20652 39983 79966 119949 159932 239898 442297 479796 884594 1326891 1769188 2653782 5307564 10275631 20551262 30826893 41102524 61653786 68810743 123307572 137621486 206432229 275242972 412864458 825728916 17684360951 35368721902 53053082853 70737443804 106106165706 212212331412