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12121012020002 = 231476168189813
BaseRepresentation
bin1011000001100010010010…
…0111011010001100100010
31120220202110011112122202012
42300120210213122030202
53042042313034120002
641440152133352522
72360466656140364
oct260304447321442
946822404478665
1012121012020002
113953546322596
121439172498742
1369c011462252
142dc9354c0d34
15160466b7dd52
hexb06249da322

12121012020002 has 32 divisors (see below), whose sum is σ = 19481557100544. Its totient is φ = 5646116433600.

The previous prime is 12121012019981. The next prime is 12121012020067. The reversal of 12121012020002 is 20002021012121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33917153 + ... + 34272660.

It is an arithmetic number, because the mean of its divisors is an integer number (608798659392).

Almost surely, 212121012020002 is an apocalyptic number.

12121012020002 is a deficient number, since it is larger than the sum of its proper divisors (7360545080542).

12121012020002 is a wasteful number, since it uses less digits than its factorization.

12121012020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68189954.

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

Adding to 12121012020002 its reverse (20002021012121), we get a palindrome (32123033032123).

The spelling of 12121012020002 in words is "twelve trillion, one hundred twenty-one billion, twelve million, twenty thousand, two".

Divisors: 1 2 31 47 61 62 94 122 1457 1891 2867 2914 3782 5734 88877 177754 68189813 136379626 2113884203 3204921211 4159578593 4227768406 6409842422 8319157186 99352557541 128946936383 195500193871 198705115082 257893872766 391000387742 6060506010001 12121012020002