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20122202211 = 3233724473221
BaseRepresentation
bin10010101111011000…
…000111000001100011
31220221100110210011120
4102233120013001203
5312202240432321
613124412343323
71311434616366
oct225730070143
956840423146
1020122202211
118596505391
123a96a74b43
131b88ac3037
14d8c6160dd
157cb858ec6
hex4af607063

20122202211 has 32 divisors (see below), whose sum is σ = 28773439488. Its totient is φ = 12475774080.

The previous prime is 20122202209. The next prime is 20122202227. The reversal of 20122202211 is 11220222102.

It is not a de Polignac number, because 20122202211 - 21 = 20122202209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122202011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6245581 + ... + 6248801.

It is an arithmetic number, because the mean of its divisors is an integer number (899169984).

Almost surely, 220122202211 is an apocalyptic number.

20122202211 is a deficient number, since it is larger than the sum of its proper divisors (8651237277).

20122202211 is a wasteful number, since it uses less digits than its factorization.

20122202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731.

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

Adding to 20122202211 its reverse (11220222102), we get a palindrome (31342424313).

The spelling of 20122202211 in words is "twenty billion, one hundred twenty-two million, two hundred two thousand, two hundred eleven".

Divisors: 1 3 23 37 69 111 851 2447 2553 3221 7341 9663 56281 74083 90539 119177 168843 222249 271617 357531 2082397 2741071 6247191 7881787 8223213 23645361 181281101 291626119 543843303 874878357 6707400737 20122202211