Search a number
-
+
1222120020109 = 16271787420341
BaseRepresentation
bin10001110010001100000…
…001111001100010001101
311022211111122102120002111
4101302030001321202031
5130010400211120414
62333233441224021
7154203162525412
oct21621401714215
94284448376074
101222120020109
1143133098864a
12178a31632011
138b32626cac1
14432181cc109
1521bcbb258c4
hex11c8c07988d

1222120020109 has 8 divisors (see below), whose sum is σ = 1223558395488. Its totient is φ = 1220682492240.

The previous prime is 1222120020071. The next prime is 1222120020139. The reversal of 1222120020109 is 9010200212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222120020109 - 223 = 1222111631501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222120020109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222120020139) 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 7 ways as a sum of consecutive naturals, for example, 2697279 + ... + 3117619.

It is an arithmetic number, because the mean of its divisors is an integer number (152944799436).

Almost surely, 21222120020109 is an apocalyptic number.

It is an amenable number.

1222120020109 is a deficient number, since it is larger than the sum of its proper divisors (1438375379).

1222120020109 is a wasteful number, since it uses less digits than its factorization.

1222120020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423755.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1222120020109 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, twenty thousand, one hundred nine".

Divisors: 1 1627 1787 420341 2907449 683894807 751149367 1222120020109