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12220011212 = 225446956087
BaseRepresentation
bin10110110000101111…
…01001001011001100
31011112122002212222212
423120113221023030
5200011310324322
65340325125552
7611552244563
oct133027511314
934478085885
1012220011212
115200972322
1224505598b8
1311c9907386
1483cd2cbda
154b7c2e0e2
hex2d85e92cc

12220011212 has 12 divisors (see below), whose sum is σ = 21385793520. Its totient is φ = 6109784496.

The previous prime is 12220011151. The next prime is 12220011227. The reversal of 12220011212 is 21211002221.

12220011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 189833 + ... + 245919.

It is an arithmetic number, because the mean of its divisors is an integer number (1782149460).

Almost surely, 212220011212 is an apocalyptic number.

It is an amenable number.

12220011212 is a deficient number, since it is larger than the sum of its proper divisors (9165782308).

12220011212 is a wasteful number, since it uses less digits than its factorization.

12220011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110560 (or 110558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220011212 its reverse (21211002221), we get a palindrome (33431013433).

The spelling of 12220011212 in words is "twelve billion, two hundred twenty million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 54469 56087 108938 112174 217876 224348 3055002803 6110005606 12220011212