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201031022211 = 3181619959723
BaseRepresentation
bin1011101100111001100…
…0011111011010000011
3201012220012100001002020
42323032120133122003
511243202420202321
6232204040252523
720344510331445
oct2731630373203
9635805301066
10201031022211
1178290853478
1232b64a71143
1315c59acb6a6
149a30dc6495
155368c324c6
hex2ece61f683

201031022211 has 16 divisors (see below), whose sum is σ = 269570246400. Its totient is φ = 133256504160.

The previous prime is 201031022209. The next prime is 201031022239. The reversal of 201031022211 is 112220130102.

It is not a de Polignac number, because 201031022211 - 21 = 201031022209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201031021211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3336196 + ... + 3395918.

It is an arithmetic number, because the mean of its divisors is an integer number (16848140400).

Almost surely, 2201031022211 is an apocalyptic number.

201031022211 is a deficient number, since it is larger than the sum of its proper divisors (68539224189).

201031022211 is a wasteful number, since it uses less digits than its factorization.

201031022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66106.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201031022211 its reverse (112220130102), we get a palindrome (313251152313).

The spelling of 201031022211 in words is "two hundred one billion, thirty-one million, twenty-two thousand, two hundred eleven".

Divisors: 1 3 181 543 6199 18597 59723 179169 1122019 3366057 10809863 32429589 370222877 1110668631 67010340737 201031022211