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1012200107 = 1915299477
BaseRepresentation
bin111100010101001…
…111001010101011
32121112122002111212
4330111033022223
54033110400412
6244234543335
734040362502
oct7425171253
92545562455
101012200107
1147a3a6a16
12242b97b4b
1313191c299
1498605839
155dce1222
hex3c54f2ab

1012200107 has 4 divisors (see below), whose sum is σ = 1017499776. Its totient is φ = 1006900440.

The previous prime is 1012200103. The next prime is 1012200109. The reversal of 1012200107 is 7010022101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7010022101 = 10368058467.

It is a cyclic number.

It is not a de Polignac number, because 1012200107 - 22 = 1012200103 is a prime.

It is a super-2 number, since 2×10122001072 = 2049098113221622898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012200091 and 1012200100.

It is not an unprimeable number, because it can be changed into a prime (1012200103) 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 in 3 ways as a sum of consecutive naturals, for example, 2649548 + ... + 2649929.

It is an arithmetic number, because the mean of its divisors is an integer number (254374944).

Almost surely, 21012200107 is an apocalyptic number.

1012200107 is a deficient number, since it is larger than the sum of its proper divisors (5299669).

1012200107 is an equidigital number, since it uses as much as digits as its factorization.

1012200107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299668.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1012200107 is about 31815.0924405383. The cubic root of 1012200107 is about 1004.0502754542.

Adding to 1012200107 its reverse (7010022101), we get a palindrome (8022222208).

The spelling of 1012200107 in words is "one billion, twelve million, two hundred thousand, one hundred seven".

Divisors: 1 191 5299477 1012200107