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12200001 = 3114171127
BaseRepresentation
bin101110100010…
…100001000001
3211221211020220
4232202201001
511110400001
61113253253
7205461342
oct56424101
924854226
1012200001
116983050
124104229
1326b2048
1418980c9
15110ec36
hexba2841

12200001 has 32 divisors (see below), whose sum is σ = 18579456. Its totient is φ = 7056000.

The previous prime is 12199997. The next prime is 12200009. The reversal of 12200001 is 10000221.

It is a happy number.

It is not a de Polignac number, because 12200001 - 22 = 12199997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12200009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96000 + ... + 96126.

It is an arithmetic number, because the mean of its divisors is an integer number (580608).

Almost surely, 212200001 is an apocalyptic number.

12200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200001 is a deficient number, since it is larger than the sum of its proper divisors (6379455).

12200001 is a wasteful number, since it uses less digits than its factorization.

12200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 12200001 is about 3492.8499824642. The cubic root of 12200001 is about 230.2077580861.

Adding to 12200001 its reverse (10000221), we get a palindrome (22200222).

The spelling of 12200001 in words is "twelve million, two hundred thousand, one".