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12202120122 = 2312726360887
BaseRepresentation
bin10110101110100110…
…11001001110111010
31011111101102221000220
423113103121032322
5144442220320442
65334445440510
7611244211143
oct132723311672
934441387026
1012202120122
1151a18624a5
122446570136
1311c5cb1b2a
1483a7d2aca
154b6397eec
hex2d74d93ba

12202120122 has 32 divisors (see below), whose sum is σ = 24690327552. Its totient is φ = 4019937264.

The previous prime is 12202120111. The next prime is 12202120123. The reversal of 12202120122 is 22102120221.

It is not an unprimeable number, because it can be changed into a prime (12202120123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169963 + ... + 230849.

It is an arithmetic number, because the mean of its divisors is an integer number (771572736).

Almost surely, 212202120122 is an apocalyptic number.

12202120122 is an abundant number, since it is smaller than the sum of its proper divisors (12488207430).

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

12202120122 is a wasteful number, since it uses less digits than its factorization.

12202120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61282.

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

Adding to 12202120122 its reverse (22102120221), we get a palindrome (34304240343).

Subtracting 12202120122 from its reverse (22102120221), we obtain a palindrome (9900000099).

The spelling of 12202120122 in words is "twelve billion, two hundred two million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 127 254 263 381 526 762 789 1578 33401 60887 66802 100203 121774 182661 200406 365322 7732649 15465298 16013281 23197947 32026562 46395894 48039843 96079686 2033686687 4067373374 6101060061 12202120122