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2202121207 = 1113391121
BaseRepresentation
bin1000001101000001…
…1011001111110111
312200110200100101201
42003100123033313
514002220334312
61002303033331
7105366502306
oct20320331767
95613610351
102202121207
11a30049290
1251559b847
132912c5000
1416c67043d
15cd4da557
hex8341b3f7

2202121207 has 16 divisors (see below), whose sum is σ = 2602444320. Its totient is φ = 1847913600.

The previous prime is 2202121183. The next prime is 2202121211. The reversal of 2202121207 is 7021212022.

It is not a de Polignac number, because 2202121207 - 227 = 2067903479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202121297) 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, 21394 + ... + 69727.

It is an arithmetic number, because the mean of its divisors is an integer number (162652770).

Almost surely, 22202121207 is an apocalyptic number.

2202121207 is a deficient number, since it is larger than the sum of its proper divisors (400323113).

2202121207 is an equidigital number, since it uses as much as digits as its factorization.

2202121207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91171 (or 91145 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2202121207 is about 46926.7642928851. The cubic root of 2202121207 is about 1301.0093161671.

Adding to 2202121207 its reverse (7021212022), we get a palindrome (9223333229).

The spelling of 2202121207 in words is "two billion, two hundred two million, one hundred twenty-one thousand, two hundred seven".

Divisors: 1 11 13 143 169 1859 2197 24167 91121 1002331 1184573 13030303 15399449 169393939 200192837 2202121207