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20222220213 = 33134371113167
BaseRepresentation
bin10010110101010101…
…101001011110110101
31221012022200020002000
4102311111221132311
5312403342021323
613142344205513
71314061015146
oct226525513665
957168606060
1020222220213
118637a09398
123b04469899
131ba3741aa0
14d9ba0dacd
157d5513e43
hex4b55697b5

20222220213 has 128 divisors (see below), whose sum is σ = 33977180160. Its totient is φ = 11806663680.

The previous prime is 20222220191. The next prime is 20222220217. The reversal of 20222220213 is 31202222202.

It is not a de Polignac number, because 20222220213 - 29 = 20222219701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222220217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 121091056 + ... + 121091222.

It is an arithmetic number, because the mean of its divisors is an integer number (265446720).

Almost surely, 220222220213 is an apocalyptic number.

It is an amenable number.

20222220213 is a deficient number, since it is larger than the sum of its proper divisors (13754959947).

20222220213 is a wasteful number, since it uses less digits than its factorization.

20222220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20222220213 its reverse (31202222202), we get a palindrome (51424442415).

The spelling of 20222220213 in words is "twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred thirteen".

Divisors: 1 3 9 13 27 39 43 71 113 117 129 167 213 339 351 387 501 559 639 923 1017 1161 1469 1503 1677 1917 2171 2769 3051 3053 4407 4509 4859 5031 6513 7181 8023 8307 9159 11857 13221 14577 15093 18871 19539 21543 24069 24921 27477 35571 39663 39689 43731 56613 58617 63167 64629 72207 82431 93353 104299 106713 119067 131193 154141 169839 189501 193887 216621 245323 280059 312897 320139 344989 357201 462423 509517 509851 568503 735969 811453 840177 938691 1034967 1071603 1339841 1387269 1529553 1705509 2207907 2434359 2520531 2816073 3104901 4019523 4161807 4484857 4588659 6623721 6628063 7303077 9314703 10548889 12058569 13454571 13765977 17417933 19884189 21909231 31646667 36175707 40363713 52253799 57613163 59652567 94940001 121091139 156761397 172839489 178957701 284820003 470284191 518518467 748971119 1555555401 2246913357 6740740071 20222220213