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2000221087 is a prime number
BaseRepresentation
bin111011100111000…
…1111001110011111
312011101202202111111
41313032033032133
513044024033322
6530251402451
7100365412234
oct16716171637
95141682444
102000221087
11937088787
12479a53427
1325b523b97
1414d91578b
15ba908177
hex7738f39f

2000221087 has 2 divisors, whose sum is σ = 2000221088. Its totient is φ = 2000221086.

The previous prime is 2000221061. The next prime is 2000221109. The reversal of 2000221087 is 7801220002.

It is an a-pointer prime, because the next prime (2000221109) can be obtained adding 2000221087 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2000221087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000221057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000110543 + 1000110544.

It is an arithmetic number, because the mean of its divisors is an integer number (1000110544).

Almost surely, 22000221087 is an apocalyptic number.

2000221087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000221087 is an equidigital number, since it uses as much as digits as its factorization.

2000221087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2000221087 is about 44723.8313094932. The cubic root of 2000221087 is about 1259.9674735452.

Adding to 2000221087 its reverse (7801220002), we get a palindrome (9801441089).

The spelling of 2000221087 in words is "two billion, two hundred twenty-one thousand, eighty-seven".