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12120221202 = 233759925349
BaseRepresentation
bin10110100100110101…
…11110011000010010
31011021200100000211120
423102122332120102
5144310234034302
65322402223110
7606231115605
oct132232763022
934250300746
1012120221202
11515a604641
122423054a96
1311b203832b
1482d99433c
154ae0bb9bc
hex2d26be612

12120221202 has 32 divisors (see below), whose sum is σ = 25317576000. Its totient is φ = 3864253248.

The previous prime is 12120221189. The next prime is 12120221221. The reversal of 12120221202 is 20212202121.

12120221202 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 15 ways as a sum of consecutive naturals, for example, 449577 + ... + 475772.

It is an arithmetic number, because the mean of its divisors is an integer number (791174250).

Almost surely, 212120221202 is an apocalyptic number.

12120221202 is an abundant number, since it is smaller than the sum of its proper divisors (13197354798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120221202 is a wasteful number, since it uses less digits than its factorization.

12120221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925450.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12120221202 its reverse (20212202121), we get a palindrome (32332423323).

The spelling of 12120221202 in words is "twelve billion, one hundred twenty million, two hundred twenty-one thousand, two hundred two".

Divisors: 1 2 3 6 37 59 74 111 118 177 222 354 2183 4366 6549 13098 925349 1850698 2776047 5552094 34237913 54595591 68475826 102713739 109191182 163786773 205427478 327573546 2020036867 4040073734 6060110601 12120221202