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212111131233110 = 25167291534356761
BaseRepresentation
bin110000001110100111111000…
…101000010100101101010110
31000211000121220102201201211112
4300032213320220110231112
5210300212044043424420
62031042301455335022
762451344365246304
oct6016477050245526
91024017812651745
10212111131233110
116164890994545a
121b958684821472
139147cbc643665
143a5433ab35274
15197c76d55c8c5
hexc0e9f8a14b56

212111131233110 has 32 divisors (see below), whose sum is σ = 384099526988352. Its totient is φ = 84333489633280.

The previous prime is 212111131233031. The next prime is 212111131233137. The reversal of 212111131233110 is 11332131111212.

It is a super-2 number, since 2×2121111312331102 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46507130 + ... + 50863890.

It is an arithmetic number, because the mean of its divisors is an integer number (12003110218386).

Almost surely, 2212111131233110 is an apocalyptic number.

212111131233110 is a deficient number, since it is larger than the sum of its proper divisors (171988395755242).

212111131233110 is a wasteful number, since it uses less digits than its factorization.

212111131233110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386088.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 212111131233110 its reverse (11332131111212), we get a palindrome (223443262344322).

The spelling of 212111131233110 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred ten".

Divisors: 1 2 5 10 167 334 835 1670 29153 58306 145765 291530 4356761 4868551 8713522 9737102 21783805 24342755 43567610 48685510 727579087 1455158174 3637895435 7275790870 127012653433 254025306866 635063267165 1270126534330 21211113123311 42422226246622 106055565616555 212111131233110