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2222122141 = 41487711113
BaseRepresentation
bin1000010001110010…
…1110010010011101
312201212022111112001
42010130232102131
514022330402031
61004255442301
7106031504131
oct20434562235
95655274461
102222122141
11a4036a288
12520226391
132954a8995
141711993c1
15d013b861
hex8472e49d

2222122141 has 8 divisors (see below), whose sum is σ = 2276991864. Its totient is φ = 2167284480.

The previous prime is 2222122127. The next prime is 2222122159. The reversal of 2222122141 is 1412212222.

It can be written as a sum of positive squares in 4 ways, for example, as 282072025 + 1940050116 = 16795^2 + 44046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2222122141 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 (2222122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194401 + ... + 205513.

It is an arithmetic number, because the mean of its divisors is an integer number (284623983).

Almost surely, 22222122141 is an apocalyptic number.

It is an amenable number.

2222122141 is a deficient number, since it is larger than the sum of its proper divisors (54869723).

2222122141 is a wasteful number, since it uses less digits than its factorization.

2222122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16031.

The product of its digits is 256, while the sum is 19.

The square root of 2222122141 is about 47139.3905454875. The cubic root of 2222122141 is about 1304.9362898586.

Adding to 2222122141 its reverse (1412212222), we get a palindrome (3634334363).

The spelling of 2222122141 in words is "two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 41 4877 11113 199957 455633 54198101 2222122141