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201001211112211 = 19101653193382981
BaseRepresentation
bin101101101100111100111101…
…110010011010101100010011
3222100200112020222222100200021
4231230330331302122230103
5202321200440021042321
61551254403122204311
760223600250333116
oct5554747562325423
9870615228870607
10201001211112211
1159055153644824
121a66346aab3697
13882044343ca63
14378c720c5057d
151838781cd8941
hexb6cf3dc9ab13

201001211112211 has 32 divisors (see below), whose sum is σ = 214115586742080. Its totient is φ = 188148453696000.

The previous prime is 201001211112179. The next prime is 201001211112227. The reversal of 201001211112211 is 112211112100102.

It is a cyclic number.

It is not a de Polignac number, because 201001211112211 - 25 = 201001211112179 is a prime.

It is a super-2 number, since 2×2010012111122112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201001011112211) 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, 2422214341 + ... + 2422297321.

It is an arithmetic number, because the mean of its divisors is an integer number (6691112085690).

Almost surely, 2201001211112211 is an apocalyptic number.

201001211112211 is a deficient number, since it is larger than the sum of its proper divisors (13114375629869).

201001211112211 is a wasteful number, since it uses less digits than its factorization.

201001211112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85687.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 201001211112211 its reverse (112211112100102), we get a palindrome (313212323212313).

The spelling of 201001211112211 in words is "two hundred one trillion, one billion, two hundred eleven million, one hundred twelve thousand, two hundred eleven".

Divisors: 1 19 101 653 1919 1933 12407 36727 65953 82981 195233 1253107 1262249 1576639 3709427 8381081 23982731 54186593 127487149 159240539 160402273 1029545267 2422255831 3047643187 5472845893 16200629573 103984071967 104742684269 307811961887 1990111001111 10579011111169 201001211112211