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2202201021 = 317910393947
BaseRepresentation
bin1000001101000010…
…1110101110111101
312200110211101212210
42003100232232331
514002230413041
61002304451033
7105400254066
oct20320565675
95613741783
102202201021
11a300a3249
12515619a79
13291322437
1416c69156d
15cd504016
hex8342ebbd

2202201021 has 16 divisors (see below), whose sum is σ = 2956262400. Its totient is φ = 1458157488.

The previous prime is 2202200999. The next prime is 2202201041. The reversal of 2202201021 is 1201022022.

It is not a de Polignac number, because 2202201021 - 25 = 2202200989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202200988 and 2202201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555970 + ... + 559916.

It is an arithmetic number, because the mean of its divisors is an integer number (184766400).

Almost surely, 22202201021 is an apocalyptic number.

It is an amenable number.

2202201021 is a deficient number, since it is larger than the sum of its proper divisors (754061379).

2202201021 is a wasteful number, since it uses less digits than its factorization.

2202201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2202201021 is about 46927.6146954008. The cubic root of 2202201021 is about 1301.0250339672.

Adding to 2202201021 its reverse (1201022022), we get a palindrome (3403223043).

The spelling of 2202201021 in words is "two billion, two hundred two million, two hundred one thousand, twenty-one".

Divisors: 1 3 179 537 1039 3117 3947 11841 185981 557943 706513 2119539 4100933 12302799 734067007 2202201021