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201112210021211 = 2322521150802979
BaseRepresentation
bin101101101110100100010101…
…110101101001101101011011
3222101002010202201000011120222
4231232210111311221231123
5202330010301231134321
61551421401314110255
760234610021441526
oct5556442565515533
9871063681004528
10201112210021211
1159098233632a65
121a680a8827b38b
13882aa52884378
143793c50979bbd
15183b5cb9493ab
hexb6e915d69b5b

201112210021211 has 12 divisors (see below), whose sum is σ = 210319788904680. Its totient is φ = 192291893307360.

The previous prime is 201112210021201. The next prime is 201112210021213. The reversal of 201112210021211 is 112120012211102.

It is not a de Polignac number, because 201112210021211 - 218 = 201112209759067 is a prime.

It is a super-2 number, since 2×2011122100212112 (a number of 29 digits) contains 22 as substring.

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 201112210021211.

It is not an unprimeable number, because it can be changed into a prime (201112210021213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74067881 + ... + 76735098.

It is an arithmetic number, because the mean of its divisors is an integer number (17526649075390).

Almost surely, 2201112210021211 is an apocalyptic number.

201112210021211 is a deficient number, since it is larger than the sum of its proper divisors (9207578883469).

201112210021211 is a wasteful number, since it uses less digits than its factorization.

201112210021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150805546 (or 150805523 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201112210021211 its reverse (112120012211102), we get a palindrome (313232222232313).

The spelling of 201112210021211 in words is "two hundred one trillion, one hundred twelve billion, two hundred ten million, twenty-one thousand, two hundred eleven".

Divisors: 1 23 529 2521 57983 1333609 150802979 3468468517 79774775891 380174310059 8744009131357 201112210021211