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20010201212211 = 3723193286175029
BaseRepresentation
bin1001000110010111111001…
…11011110110010100110011
32121211221211022211210001020
410203023330323312110303
510110321343002242321
6110320320505310523
74133455303630230
oct443137473662463
977757738753036
1020010201212211
116415307a12831
1222b213ba95443
13b21c52891192
144d26dadda787
1524a7a073c4c6
hex1232fcef6533

20010201212211 has 64 divisors (see below), whose sum is σ = 31993925253120. Its totient is φ = 10876635095040.

The previous prime is 20010201212161. The next prime is 20010201212227. The reversal of 20010201212211 is 11221210201002.

It is not a de Polignac number, because 20010201212211 - 219 = 20010200687923 is a prime.

It is a super-3 number, since 3×200102012122113 (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20010201212311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266662045 + ... + 266737073.

It is an arithmetic number, because the mean of its divisors is an integer number (499905082080).

Almost surely, 220010201212211 is an apocalyptic number.

20010201212211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20010201212211 is a deficient number, since it is larger than the sum of its proper divisors (11983724040909).

20010201212211 is a wasteful number, since it uses less digits than its factorization.

20010201212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78116.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20010201212211 its reverse (11221210201002), we get a palindrome (31231411413213).

The spelling of 20010201212211 in words is "twenty trillion, ten billion, two hundred one million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 3 7 21 23 69 161 193 483 579 1351 2861 4053 4439 8583 13317 20027 31073 60081 65803 75029 93219 197409 225087 460621 525203 552173 1381863 1575609 1656519 1725667 3865211 5177001 11595633 12079669 12699979 14480597 36239007 38099937 43441791 88899853 101364179 214657969 266699559 304092537 333053731 643973907 999161193 1502605783 2331376117 4507817349 4937133287 6994128351 14811399861 34559933009 41428988017 103679799027 124286964051 290002916119 870008748357 952866724391 2858600173173 6670067070737 20010201212211