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212536120111 = 7212269353531
BaseRepresentation
bin1100010111110000100…
…0111101001100101111
3202022121000012120101021
43011330020331030233
511440233221320421
6241345430355011
721232562133100
oct3057410751457
9668530176337
10212536120111
118215510a847
1235235abba67
1317071574623
14a402db83a7
1557ddce5341
hex317c23d32f

212536120111 has 12 divisors (see below), whose sum is σ = 247256745480. Its totient is φ = 182158453680.

The previous prime is 212536120109. The next prime is 212536120129. The reversal of 212536120111 is 111021635212.

It is not a de Polignac number, because 212536120111 - 21 = 212536120109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212536120711) 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, 424416 + ... + 777946.

It is an arithmetic number, because the mean of its divisors is an integer number (20604728790).

Almost surely, 2212536120111 is an apocalyptic number.

212536120111 is a deficient number, since it is larger than the sum of its proper divisors (34720625369).

212536120111 is a wasteful number, since it uses less digits than its factorization.

212536120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365814 (or 365807 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 212536120111 its reverse (111021635212), we get a palindrome (323557755323).

The spelling of 212536120111 in words is "two hundred twelve billion, five hundred thirty-six million, one hundred twenty thousand, one hundred eleven".

Divisors: 1 7 49 12269 85883 353531 601181 2474717 17323019 4337471839 30362302873 212536120111