Search a number
-
+
1212010101213 = 31997192187811
BaseRepresentation
bin10001101000110001011…
…011100111100111011101
311021212102001211110120220
4101220301123213213131
5124324144041214323
62324442330431553
7153364511610252
oct21506133474735
94255361743526
101212010101213
1142801311797a
12176a8b8925b9
138a3a4878182
1442939615429
15217d92a40e3
hex11a316e79dd

1212010101213 has 16 divisors (see below), whose sum is σ = 1701242611200. Its totient is φ = 765400952880.

The previous prime is 1212010101199. The next prime is 1212010101241. The reversal of 1212010101213 is 3121010102121.

It is not a de Polignac number, because 1212010101213 - 238 = 937132194269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212010101192 and 1212010101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212010101613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539923 + ... + 1647888.

It is an arithmetic number, because the mean of its divisors is an integer number (106327663200).

Almost surely, 21212010101213 is an apocalyptic number.

It is an amenable number.

1212010101213 is a deficient number, since it is larger than the sum of its proper divisors (489232509987).

1212010101213 is a wasteful number, since it uses less digits than its factorization.

1212010101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197552.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1212010101213 its reverse (3121010102121), we get a palindrome (4333020203334).

The spelling of 1212010101213 in words is "one trillion, two hundred twelve billion, ten million, one hundred one thousand, two hundred thirteen".

Divisors: 1 3 19 57 9719 29157 184661 553983 2187811 6563433 41568409 124705227 21263335109 63790005327 404003367071 1212010101213