Search a number
12011220213 = 333711187701
BaseRepresentation
bin10110010111110110…
…01010110011110101
31011000002020012120220
423023323022303311
5144044333021323
65303510044553
7603435454506
oct131373126365
934002205526
1012011220213
115104025583
1223b2649759
1311955928c5
154a473a0e3
hex2cbecacf5

12011220213 has 8 divisors (see below), whose sum is σ = 16019724576. Its totient is φ = 8005098000.

The previous prime is 12011220197. The next prime is 12011220223. The reversal of 12011220213 is 31202211021.

Adding to 12011220213 its reverse (31202211021), we get a palindrome (43213431234).

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

It is not a de Polignac number, because 12011220213 - 24 = 12011220197 is a prime.

It is a super-2 number, since 2×120112202132 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011220192 and 12011220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011220223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583738 + ... + 603963.

It is an arithmetic number, because the mean of its divisors is an integer number (2002465572).

Almost surely, 212011220213 is an apocalyptic number.

It is an amenable number.

12011220213 is a deficient number, since it is larger than the sum of its proper divisors (4008504363).

12011220213 is a wasteful number, since it uses less digits than its factorization.

12011220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191075.

The product of its (nonzero) digits is 48, while the sum is 15.

The spelling of 12011220213 in words is "twelve billion, eleven million, two hundred twenty thousand, two hundred thirteen".