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20020221002210 = 25111373191782939
BaseRepresentation
bin1001000110101010100100…
…01010010100000111100010
32121212220200121211211221112
410203111102022110013202
510111002403034032320
6110325055040223322
74134261511505042
oct443252212240742
977786617754845
1020020221002210
116419589914310
1222b407760ab42
13b22b8b6ba2c0
144d2daba31722
1524ab8a208ec5
hex1235522941e2

20020221002210 has 64 divisors (see below), whose sum is σ = 42916419181440. Its totient is φ = 6628018337280.

The previous prime is 20020221002191. The next prime is 20020221002213. The reversal of 20020221002210 is 1220012202002.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20020221002213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95787080 + ... + 95995859.

It is an arithmetic number, because the mean of its divisors is an integer number (670569049710).

Almost surely, 220020221002210 is an apocalyptic number.

20020221002210 is an abundant number, since it is smaller than the sum of its proper divisors (22896198179230).

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

20020221002210 is a wasteful number, since it uses less digits than its factorization.

20020221002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191783043.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020221002210 its reverse (1220012202002), we get a palindrome (21240233204212).

The spelling of 20020221002210 in words is "twenty trillion, twenty billion, two hundred twenty-one million, two thousand, two hundred ten".

Divisors: 1 2 5 10 11 13 22 26 55 65 73 110 130 143 146 286 365 715 730 803 949 1430 1606 1898 4015 4745 8030 9490 10439 20878 52195 104390 191782939 383565878 958914695 1917829390 2109612329 2493178207 4219224658 4986356414 10548061645 12465891035 14000154547 21096123290 24931782070 27424960277 28000309094 54849920554 70000772735 137124801385 140001545470 154001700017 182002009111 274249602770 308003400034 364004018222 770008500085 910010045555 1540017000170 1820020091110 2002022100221 4004044200442 10010110501105 20020221002210