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1312322222122 = 219292235340157
BaseRepresentation
bin10011000110001100011…
…111111111100000101010
311122110022222210012020021
4103012030133333200222
5133000113442101442
62442512243351054
7163545365560252
oct23061437774052
94573288705207
101312322222122
1146660975603a
1219240608248a
139699cc3a732
1447733cc2962
152420aae3e67
hex1318c7ff82a

1312322222122 has 32 divisors (see below), whose sum is σ = 2153151705600. Its totient is φ = 597499374528.

The previous prime is 1312322222039. The next prime is 1312322222131. The reversal of 1312322222122 is 2212222232131.

It is a super-3 number, since 3×13123222221223 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424333 + ... + 2915824.

It is an arithmetic number, because the mean of its divisors is an integer number (67285990800).

Almost surely, 21312322222122 is an apocalyptic number.

1312322222122 is a deficient number, since it is larger than the sum of its proper divisors (840829483478).

1312322222122 is a wasteful number, since it uses less digits than its factorization.

1312322222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340430.

The product of its digits is 2304, while the sum is 25.

Adding to 1312322222122 its reverse (2212222232131), we get a palindrome (3524544454253).

The spelling of 1312322222122 in words is "one trillion, three hundred twelve billion, three hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 19 29 38 58 223 446 551 1102 4237 6467 8474 12934 122873 245746 5340157 10680314 101462983 154864553 202925966 309729106 1190855011 2381710022 2942426507 5884853014 22626245209 34534795319 45252490418 69069590638 656161111061 1312322222122