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1220200127 is a prime number
BaseRepresentation
bin100100010111010…
…1100011010111111
310011001000120220022
41020232230122333
54444332401002
6321025042355
742144346526
oct11056543277
93131016808
101220200127
11576853463
122a07863bb
13165a47a13
14b80ab4bd
15721caba2
hex48bac6bf

1220200127 has 2 divisors, whose sum is σ = 1220200128. Its totient is φ = 1220200126.

The previous prime is 1220200099. The next prime is 1220200133. The reversal of 1220200127 is 7210020221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7210020221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220200127 - 210 = 1220199103 is a prime.

It is a super-2 number, since 2×12202001272 = 2977776699861632258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220200147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610100063 + 610100064.

It is an arithmetic number, because the mean of its divisors is an integer number (610100064).

Almost surely, 21220200127 is an apocalyptic number.

1220200127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220200127 is an equidigital number, since it uses as much as digits as its factorization.

1220200127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1220200127 is about 34931.3630853421. The cubic root of 1220200127 is about 1068.5881536346.

Adding to 1220200127 its reverse (7210020221), we get a palindrome (8430220348).

The spelling of 1220200127 in words is "one billion, two hundred twenty million, two hundred thousand, one hundred twenty-seven".