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22210223412 = 223131283110969
BaseRepresentation
bin10100101011110101…
…010001110100110100
32010022212110020210010
4110223311101310310
5330441304122122
614111522100220
71414250532636
oct245365216464
963285406703
1022210223412
119468101643
12437a1aa670
13212c578740
141109a64a56
1589ed06e0c
hex52bd51d34

22210223412 has 48 divisors (see below), whose sum is σ = 55854308160. Its totient is φ = 6828526848.

The previous prime is 22210223383. The next prime is 22210223429. The reversal of 22210223412 is 21432201222.

It is a congruent number.

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, 144664 + ... + 255632.

It is an arithmetic number, because the mean of its divisors is an integer number (1163631420).

Almost surely, 222210223412 is an apocalyptic number.

It is an amenable number.

22210223412 is an abundant number, since it is smaller than the sum of its proper divisors (33644084748).

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

22210223412 is a wasteful number, since it uses less digits than its factorization.

22210223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112272 (or 112270 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22210223412 its reverse (21432201222), we get a palindrome (43642424634).

The spelling of 22210223412 in words is "twenty-two billion, two hundred ten million, two hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1283 2566 3849 5132 7698 15396 16679 33358 50037 66716 100074 110969 200148 221938 332907 443876 665814 1331628 1442597 2885194 4327791 5770388 8655582 17311164 142373227 284746454 427119681 569492908 854239362 1708478724 1850851951 3701703902 5552555853 7403407804 11105111706 22210223412