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20010010212212 = 2227236918366637
BaseRepresentation
bin1001000110010111100011…
…00011001111011101110100
32121211221100000102222022012
410203023301203033131310
510110321000103242322
6110320245523423352
74133450464306016
oct443136143173564
977757300388265
1020010010212212
11641521a117699
1222b20a7b24b58
13b21c22138527
144d26bd8bc1b6
1524a78daaeae2
hex1232f18cf774

20010010212212 has 12 divisors (see below), whose sum is σ = 35017648344420. Its totient is φ = 10004967828096.

The previous prime is 20010010212187. The next prime is 20010010212217. The reversal of 20010010212212 is 21221201001002.

It can be written as a sum of positive squares in 2 ways, for example, as 11463953135716 + 8546057076496 = 3385846^2 + 2923364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010010212217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8093843 + ... + 10272794.

It is an arithmetic number, because the mean of its divisors is an integer number (2918137362035).

Almost surely, 220010010212212 is an apocalyptic number.

It is an amenable number.

20010010212212 is a deficient number, since it is larger than the sum of its proper divisors (15007638132208).

20010010212212 is a wasteful number, since it uses less digits than its factorization.

20010010212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18639010 (or 18639008 counting only the distinct ones).

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

Adding to 20010010212212 its reverse (21221201001002), we get a palindrome (41231211213214).

The spelling of 20010010212212 in words is "twenty trillion, ten billion, ten million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 272369 544738 1089476 18366637 36733274 73466548 5002502553053 10005005106106 20010010212212