Search a number
-
+
12020101212122 = 273181454858897
BaseRepresentation
bin1010111011101010010111…
…0111001110011111011010
31120120002222112001110222022
42232322211313032133122
53033414131402241442
641321542552454442
72350265212340333
oct256724567163732
946502875043868
1012020101212122
113914772853003
1214216ab6aa422
1369264c043943
142d7ac14cd28a
1515ca0c9d03d2
hexaeea5dce7da

12020101212122 has 16 divisors (see below), whose sum is σ = 18378118914792. Its totient is φ = 5894971292160.

The previous prime is 12020101212079. The next prime is 12020101212143. The reversal of 12020101212122 is 22121210102021.

It can be written as a sum of positive squares in 4 ways, for example, as 6343895026681 + 5676206185441 = 2518709^2 + 2382479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12020101212122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227403023 + ... + 227455874.

Almost surely, 212020101212122 is an apocalyptic number.

12020101212122 is a deficient number, since it is larger than the sum of its proper divisors (6358017702670).

12020101212122 is a wasteful number, since it uses less digits than its factorization.

12020101212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454859153.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12020101212122 its reverse (22121210102021), we get a palindrome (34141311314143).

The spelling of 12020101212122 in words is "twelve trillion, twenty billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 73 146 181 362 13213 26426 454858897 909717794 33204699481 66409398962 82329460357 164658920714 6010050606061 12020101212122