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20120222110 = 257139437187
BaseRepresentation
bin10010101111010000…
…100011100110011110
31220221012202011222111
4102233100203212132
5312201234101420
613124302104234
71311412031452
oct225720434636
956835664874
1020120222110
11859538273a
123a9627b07a
131b8857b991
14d8c25c662
157cb5b745a
hex4af42399e

20120222110 has 32 divisors (see below), whose sum is σ = 36740915712. Its totient is φ = 7931619360.

The previous prime is 20120222093. The next prime is 20120222131. The reversal of 20120222110 is 1122202102.

It is a happy number.

It is a congruent number.

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, 2795937 + ... + 2803123.

It is an arithmetic number, because the mean of its divisors is an integer number (1148153616).

Almost surely, 220120222110 is an apocalyptic number.

20120222110 is a deficient number, since it is larger than the sum of its proper divisors (16620693602).

20120222110 is a wasteful number, since it uses less digits than its factorization.

20120222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11208.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20120222110 its reverse (1122202102), we get a palindrome (21242424212).

The spelling of 20120222110 in words is "twenty billion, one hundred twenty million, two hundred twenty-two thousand, one hundred ten".

Divisors: 1 2 5 10 71 142 355 710 3943 7187 7886 14374 19715 35935 39430 71870 279953 510277 559906 1020554 1399765 2551385 2799530 5102770 28338341 56676682 141691705 283383410 2012022211 4024044422 10060111055 20120222110