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1212031132212 = 223412463477911
BaseRepresentation
bin10001101000110010101…
…011110110001000110100
311021212110112101221200210
4101220302223312020310
5124324214432212322
62324444401305420
7153365155432155
oct21506253661064
94255415357623
101212031132212
11428023a8186a
12176a96935270
138a3a902c954
144293c32b92c
15217db05a70c
hex11a32af6234

1212031132212 has 24 divisors (see below), whose sum is σ = 2897050024512. Its totient is φ = 394156465600.

The previous prime is 1212031132183. The next prime is 1212031132219. The reversal of 1212031132212 is 2122311302121.

It is a super-2 number, since 2×12120311322122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212031132219) 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 7 ways as a sum of consecutive naturals, for example, 1231738464 + ... + 1231739447.

It is an arithmetic number, because the mean of its divisors is an integer number (120710417688).

Almost surely, 21212031132212 is an apocalyptic number.

1212031132212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212031132212 is an abundant number, since it is smaller than the sum of its proper divisors (1685018892300).

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

1212031132212 is a wasteful number, since it uses less digits than its factorization.

1212031132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463477959 (or 2463477957 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212031132212 its reverse (2122311302121), we get a palindrome (3334342434333).

The spelling of 1212031132212 in words is "one trillion, two hundred twelve billion, thirty-one million, one hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 2463477911 4926955822 7390433733 9853911644 14780867466 29561734932 101002594351 202005188702 303007783053 404010377404 606015566106 1212031132212