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20221231133212 = 2212913915807733
BaseRepresentation
bin1001001100100000111110…
…10011000111001000011100
32122121010112100212111200021
410212100133103013020130
510122301040132230322
6111001301053041524
74154635646436304
oct446203723071034
978533470774607
1020221231133212
11649685989891a
1223270154862a4
13b38b14082a15
144dc9d9d3a604
152510021b14c7
hex12641f4c721c

20221231133212 has 12 divisors (see below), whose sum is σ = 35414565146296. Its totient is φ = 10102783948560.

The previous prime is 20221231133203. The next prime is 20221231133239. The reversal of 20221231133212 is 21233113212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957898703 + ... + 1957909030.

Almost surely, 220221231133212 is an apocalyptic number.

It is an amenable number.

20221231133212 is a deficient number, since it is larger than the sum of its proper divisors (15193334013084).

20221231133212 is a wasteful number, since it uses less digits than its factorization.

20221231133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915809028 (or 3915809026 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20221231133212 its reverse (21233113212202), we get a palindrome (41454344345414).

The spelling of 20221231133212 in words is "twenty trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 4 1291 2582 5164 3915807733 7831615466 15663230932 5055307783303 10110615566606 20221231133212