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201222112211 = 615074165011
BaseRepresentation
bin1011101101100111000…
…1011100001111010011
3201020101111220102021122
42323121301130033103
511244100330042321
6232235024112455
720352320506241
oct2733161341723
9636344812248
10201222112211
117837970019a
1232bb8a6572b
1315c8a5862b3
149a4c529791
15537a8cb8ab
hex2ed9c5c3d3

201222112211 has 8 divisors (see below), whose sum is σ = 204528012048. Its totient is φ = 197916444000.

The previous prime is 201222112183. The next prime is 201222112219. The reversal of 201222112211 is 112211222102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201222112211 - 210 = 201222111187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201222112211.

It is not an unprimeable number, because it can be changed into a prime (201222112219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062696 + ... + 3127706.

It is an arithmetic number, because the mean of its divisors is an integer number (25566001506).

Almost surely, 2201222112211 is an apocalyptic number.

201222112211 is a deficient number, since it is larger than the sum of its proper divisors (3305899837).

201222112211 is an equidigital number, since it uses as much as digits as its factorization.

201222112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115813.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201222112211 its reverse (112211222102), we get a palindrome (313433334313).

The spelling of 201222112211 in words is "two hundred one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".

Divisors: 1 61 50741 65011 3095201 3965671 3298723151 201222112211