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2200011021 = 3213172943887
BaseRepresentation
bin1000001100100001…
…1000000100001101
312200022201010202200
42003020120010031
514001200323041
61002145512113
7105342533205
oct20310300415
95608633680
102200011021
11a2993792a
12514942639
13290a36690
1416c281405
15cd2201b6
hex8321810d

2200011021 has 96 divisors (see below), whose sum is σ = 3839996160. Its totient is φ = 1200310272.

The previous prime is 2200010993. The next prime is 2200011067. The reversal of 2200011021 is 1201100022.

It is not a de Polignac number, because 2200011021 - 211 = 2200008973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2200010994 and 2200011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200011091) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2479840 + ... + 2480726.

It is an arithmetic number, because the mean of its divisors is an integer number (39999960).

Almost surely, 22200011021 is an apocalyptic number.

It is an amenable number.

2200011021 is a deficient number, since it is larger than the sum of its proper divisors (1639985139).

2200011021 is a wasteful number, since it uses less digits than its factorization.

2200011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2200011021 is about 46904.2750823419. The cubic root of 2200011021 is about 1300.5936186384.

Adding to 2200011021 its reverse (1201100022), we get a palindrome (3401111043).

The spelling of 2200011021 in words is "two billion, two hundred million, eleven thousand, twenty-one".

Divisors: 1 3 9 13 17 29 39 43 51 87 117 129 153 221 261 377 387 493 559 663 731 887 1131 1247 1479 1677 1989 2193 2661 3393 3741 4437 5031 6409 6579 7983 9503 11223 11531 15079 16211 19227 21199 25723 28509 34593 38141 45237 48633 57681 63597 77169 85527 103779 114423 135711 145899 190791 196027 231507 275587 334399 343269 437291 495833 588081 648397 826761 1003197 1106089 1311873 1487499 1764243 1945191 2480283 3009591 3318267 3935619 4462497 5684783 5835573 8429161 9954801 14379157 17054349 18803513 25287483 43137471 51163047 56410539 75862449 129412413 169231617 244445669 733337007 2200011021