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20112222110 = 257925458509
BaseRepresentation
bin10010101110110010…
…000010011110011110
31220220122200202001012
4102232302002132132
5312142212101420
613123414415222
71311254032031
oct225662023636
956818622035
1020112222110
118590909172
123a93661512
131b86a0a556
14d8b179018
157caa36dc5
hex4aec8279e

20112222110 has 16 divisors (see below), whose sum is σ = 36660254400. Its totient is φ = 7943054496.

The previous prime is 20112222089. The next prime is 20112222149. The reversal of 20112222110 is 1122221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12728465 + ... + 12730044.

It is an arithmetic number, because the mean of its divisors is an integer number (2291265900).

Almost surely, 220112222110 is an apocalyptic number.

20112222110 is a deficient number, since it is larger than the sum of its proper divisors (16548032290).

20112222110 is a wasteful number, since it uses less digits than its factorization.

20112222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25458595.

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

Adding to 20112222110 its reverse (1122221102), we get a palindrome (21234443212).

The spelling of 20112222110 in words is "twenty billion, one hundred twelve million, two hundred twenty-two thousand, one hundred ten".

Divisors: 1 2 5 10 79 158 395 790 25458509 50917018 127292545 254585090 2011222211 4022444422 10056111055 20112222110