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201210222112021 = 6719915091143937
BaseRepresentation
bin101101101111111111100111…
…110100000110110100010101
3222101102111202100001021002101
4231233333213310012310111
5202333112013330041041
61551534411105242101
760244646606453443
oct5557774764066425
9871374670037071
10201210222112021
115912585992a501
121a697a80333331
138837072590b85
1437988ab9abb93
15183de163adb31
hexb6ffe7d06d15

201210222112021 has 8 divisors (see below), whose sum is σ = 205239557556800. Its totient is φ = 197211068955648.

The previous prime is 201210222111959. The next prime is 201210222112157. The reversal of 201210222112021 is 120211222012102.

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 201210222112021 - 211 = 201210222109973 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 201210222112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210222112621) 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, 7545558636 + ... + 7545585301.

It is an arithmetic number, because the mean of its divisors is an integer number (25654944694600).

Almost surely, 2201210222112021 is an apocalyptic number.

It is an amenable number.

201210222112021 is a deficient number, since it is larger than the sum of its proper divisors (4029335444779).

201210222112021 is a wasteful number, since it uses less digits than its factorization.

201210222112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15091144203.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201210222112021 its reverse (120211222012102), we get a palindrome (321421444124123).

The spelling of 201210222112021 in words is "two hundred one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twelve thousand, twenty-one".

Divisors: 1 67 199 13333 15091143937 1011106643779 3003137643463 201210222112021