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20200221222 = 23191315932281
BaseRepresentation
bin10010110100000001…
…101110101000100110
31221010210021120010120
4102310001232220212
5312332224034342
613140240502410
71313403022146
oct226401565046
957123246116
1020200221222
118626553205
123ab901aa06
131b9c00b82c
14d98b24926
157d361aaec
hex4b406ea26

20200221222 has 64 divisors (see below), whose sum is σ = 42942493440. Its totient is φ = 6316876800.

The previous prime is 20200221199. The next prime is 20200221233. The reversal of 20200221222 is 22212200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8854722 + ... + 8857002.

It is an arithmetic number, because the mean of its divisors is an integer number (670976460).

Almost surely, 220200221222 is an apocalyptic number.

20200221222 is an abundant number, since it is smaller than the sum of its proper divisors (22742272218).

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

20200221222 is a wasteful number, since it uses less digits than its factorization.

20200221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20200221222 its reverse (22212200202), we get a palindrome (42412421424).

The spelling of 20200221222 in words is "twenty billion, two hundred million, two hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 114 131 262 393 593 786 1186 1779 2281 2489 3558 4562 4978 6843 7467 11267 13686 14934 22534 33801 43339 67602 77683 86678 130017 155366 233049 260034 298811 466098 597622 896433 1352633 1475977 1792866 2705266 2951954 4057899 4427931 5677409 8115798 8855862 11354818 17032227 25700027 34064454 51400054 77100081 154200162 177194923 354389846 531584769 1063169538 3366703537 6733407074 10100110611 20200221222