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212011010012011 = 7831915113373657
BaseRepresentation
bin110000001101001010101000…
…111100001011001101101011
31000210200001110210222201111111
4300031022220330023031223
5210242042022030341021
62030524302522211151
762441201320022440
oct6015125074131553
91023601423881444
10212011010012011
116160a401044131
121b9411a2353ab7
13913b7249a0272
143a4d55d95b9c7
151979d5d87a8e1
hexc0d2a8f0b36b

212011010012011 has 32 divisors (see below), whose sum is σ = 246550285836288. Its totient is φ = 178558903042560.

The previous prime is 212011010011987. The next prime is 212011010012023. The reversal of 212011010012011 is 110210010110212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212011010012011 - 233 = 212002420077419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212011010011982 and 212011010012000.

It is not an unprimeable number, because it can be changed into a prime (212011010012911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567207895 + ... + 567581551.

It is an arithmetic number, because the mean of its divisors is an integer number (7704696432384).

Almost surely, 2212011010012011 is an apocalyptic number.

212011010012011 is a deficient number, since it is larger than the sum of its proper divisors (34539275824277).

212011010012011 is a wasteful number, since it uses less digits than its factorization.

212011010012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379051.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212011010012011 its reverse (110210010110212), we get a palindrome (322221020122223).

The spelling of 212011010012011 in words is "two hundred twelve trillion, eleven billion, ten million, twelve thousand, eleven".

Divisors: 1 7 83 191 581 1337 5113 15853 35791 110971 373657 424379 976583 2615599 2970653 6836081 31013531 71368487 81056389 217094717 499579409 567394723 1910508241 5923584421 13373557687 41465090947 158572184003 364907074031 1110005288021 2554349518217 30287287144573 212011010012011