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211222220020011 = 32241182981532199
BaseRepresentation
bin110000000001101100000001…
…011001001001100100101011
31000200212122110200110101120100
4300001230001121021210223
5210141131101311120021
62025122052011200443
762330205342512454
oct6001540131114453
91020778420411510
10211222220020011
1161335927716362
121b834346146123
1390b22292ca925
143a232d233212b
1519645947ac626
hexc01b0164992b

211222220020011 has 24 divisors (see below), whose sum is σ = 306366982178400. Its totient is φ = 140229489657600.

The previous prime is 211222220019983. The next prime is 211222220020013. The reversal of 211222220020011 is 110020022222112.

It is a happy number.

211222220020011 is a `hidden beast` number, since 2 + 11 + 222 + 220 + 0 + 200 + 11 = 666.

It is not a de Polignac number, because 211222220020011 - 210 = 211222220018987 is a prime.

It is a super-2 number, since 2×2112222200200112 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222220020013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396619690 + ... + 397151888.

It is an arithmetic number, because the mean of its divisors is an integer number (12765290924100).

Almost surely, 2211222220020011 is an apocalyptic number.

211222220020011 is a deficient number, since it is larger than the sum of its proper divisors (95144762158389).

211222220020011 is a wasteful number, since it uses less digits than its factorization.

211222220020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715427 (or 715424 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211222220020011 its reverse (110020022222112), we get a palindrome (321242242242123).

The spelling of 211222220020011 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, twenty thousand, eleven".

Divisors: 1 3 9 241 723 2169 182981 532199 548943 1596597 1646829 4789791 44098421 128259959 132295263 384779877 396885789 1154339631 97382305219 292146915657 876440746971 23469135557779 70407406673337 211222220020011