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212131020201 = 3891934116571
BaseRepresentation
bin1100010110001111111…
…1100111110110101001
3202021112202221100202220
43011203333213312221
511433421020121301
6241241315544253
721216542630562
oct3054377476651
9667482840686
10212131020201
1181a67481231
12351422bb089
1317008668939
14a3a5287169
1557b8475936
hex3163fe7da9

212131020201 has 16 divisors (see below), whose sum is σ = 287501388480. Its totient is φ = 139107133440.

The previous prime is 212131020149. The next prime is 212131020259. The reversal of 212131020201 is 102020131212.

It is not a de Polignac number, because 212131020201 - 211 = 212131018153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212131020271) 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, 2006755 + ... + 2109816.

It is an arithmetic number, because the mean of its divisors is an integer number (17968836780).

Almost surely, 2212131020201 is an apocalyptic number.

It is an amenable number.

212131020201 is a deficient number, since it is larger than the sum of its proper divisors (75370368279).

212131020201 is a wasteful number, since it uses less digits than its factorization.

212131020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116856.

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

Adding to 212131020201 its reverse (102020131212), we get a palindrome (314151151413).

The spelling of 212131020201 in words is "two hundred twelve billion, one hundred thirty-one million, twenty thousand, two hundred one".

Divisors: 1 3 89 193 267 579 17177 51531 4116571 12349713 366374819 794498203 1099124457 2383494609 70710340067 212131020201