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12201010 = 258913709
BaseRepresentation
bin101110100010…
…110000110010
3211221212122021
4232202300302
511110413020
61113302054
7205464313
oct56426062
924855567
1012201010
116983888
12410492a
1326b2643
14189860a
1511101aa
hexba2c32

12201010 has 16 divisors (see below), whose sum is σ = 22210200. Its totient is φ = 4825216.

The previous prime is 12200989. The next prime is 12201041. The reversal of 12201010 is 1010221.

It can be written as a sum of positive squares in 4 ways, for example, as 10118761 + 2082249 = 3181^2 + 1443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12200984 and 12201002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5965 + ... + 7744.

Almost surely, 212201010 is an apocalyptic number.

12201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12201010 is a deficient number, since it is larger than the sum of its proper divisors (10009190).

12201010 is a wasteful number, since it uses less digits than its factorization.

12201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13805.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 12201010 is about 3492.9944174018. The cubic root of 12201010 is about 230.2141043486.

Adding to 12201010 its reverse (1010221), we get a palindrome (13211231).

The spelling of 12201010 in words is "twelve million, two hundred one thousand, ten".

Divisors: 1 2 5 10 89 178 445 890 13709 27418 68545 137090 1220101 2440202 6100505 12201010