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1220020199 is a prime number
BaseRepresentation
bin100100010111000…
…0000011111100111
310011000200110002022
41020232000133213
54444311121244
6321021133355
742143000126
oct11056003747
93130613068
101220020199
11576740262
122a06ba25b
131659b3b58
14b8061abd
15721926ee
hex48b807e7

1220020199 has 2 divisors, whose sum is σ = 1220020200. Its totient is φ = 1220020198.

The previous prime is 1220020189. The next prime is 1220020247. The reversal of 1220020199 is 9910200221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220020199 - 212 = 1220016103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220020189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010099 + 610010100.

It is an arithmetic number, because the mean of its divisors is an integer number (610010100).

Almost surely, 21220020199 is an apocalyptic number.

1220020199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220020199 is an equidigital number, since it uses as much as digits as its factorization.

1220020199 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 1220020199 is about 34928.7875397930. The cubic root of 1220020199 is about 1068.5356271743.

The spelling of 1220020199 in words is "one billion, two hundred twenty million, twenty thousand, one hundred ninety-nine".