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2212122103 = 2578607479
BaseRepresentation
bin1000001111011010…
…0100110111110111
312201011111110001021
42003312210313313
514012300401403
61003301242011
7105550504402
oct20366446767
95634443037
102212122103
11a3575a094
12518a03307
132933b70b9
1416db14d39
15ce3138bd
hex83da4df7

2212122103 has 4 divisors (see below), whose sum is σ = 2220729840. Its totient is φ = 2203514368.

The previous prime is 2212122097. The next prime is 2212122113. The reversal of 2212122103 is 3012212122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212122103 - 221 = 2210024951 is a prime.

It is a super-2 number, since 2×22121221032 = 9786968397162285218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212122113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4303483 + ... + 4303996.

It is an arithmetic number, because the mean of its divisors is an integer number (555182460).

Almost surely, 22212122103 is an apocalyptic number.

2212122103 is a deficient number, since it is larger than the sum of its proper divisors (8607737).

2212122103 is an equidigital number, since it uses as much as digits as its factorization.

2212122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607736.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2212122103 is about 47033.2021342370. The cubic root of 2212122103 is about 1302.9758460697.

Adding to 2212122103 its reverse (3012212122), we get a palindrome (5224334225).

The spelling of 2212122103 in words is "two billion, two hundred twelve million, one hundred twenty-two thousand, one hundred three".

Divisors: 1 257 8607479 2212122103