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201220199 is a prime number
BaseRepresentation
bin10111111111001…
…10000001100111
3112000122001012222
423333212001213
5403003021244
631544502555
74662225545
oct1377460147
9460561188
10201220199
11a3646794
125747aa5b
13328c380b
141ca1cd95
15129eabee
hexbfe6067

201220199 has 2 divisors, whose sum is σ = 201220200. Its totient is φ = 201220198.

The previous prime is 201220073. The next prime is 201220223. The reversal of 201220199 is 991022102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201220199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201520199) 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 as a sum of consecutive naturals, namely, 100610099 + 100610100.

It is an arithmetic number, because the mean of its divisors is an integer number (100610100).

Almost surely, 2201220199 is an apocalyptic number.

201220199 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220199 is an equidigital number, since it uses as much as digits as its factorization.

201220199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 201220199 is about 14185.2105729876. The cubic root of 201220199 is about 585.9904316873.

The spelling of 201220199 in words is "two hundred one million, two hundred twenty thousand, one hundred ninety-nine".