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12120010012210 = 253151151764341
BaseRepresentation
bin1011000001011110100011…
…1001000011011000110010
31120220122212100002101110111
42300113220321003120302
53042033240030342320
641435504501051534
72360433101205022
oct260275071033062
946818770071414
1012120010012210
113953081758281
121438b329b6baa
1369bbb19a1229
142dc87c3ada82
15160408c02a5a
hexb05e8e43632

12120010012210 has 32 divisors (see below), whose sum is σ = 22520230262784. Its totient is φ = 4691518920000.

The previous prime is 12120010012207. The next prime is 12120010012217. The reversal of 12120010012210 is 1221001002121.

It is not an unprimeable number, because it can be changed into a prime (12120010012217) 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, 15474640 + ... + 16238980.

It is an arithmetic number, because the mean of its divisors is an integer number (703757195712).

Almost surely, 212120010012210 is an apocalyptic number.

12120010012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120010012210 is a deficient number, since it is larger than the sum of its proper divisors (10400220250574).

12120010012210 is a wasteful number, since it uses less digits than its factorization.

12120010012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815530.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12120010012210 its reverse (1221001002121), we get a palindrome (13341011014331).

The spelling of 12120010012210 in words is "twelve trillion, one hundred twenty billion, ten million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 51151 102302 255755 511510 764341 1528682 1585681 3171362 3821705 7643410 7928405 15856810 23694571 47389142 118472855 236945710 39096806491 78193612982 195484032455 390968064910 1212001001221 2424002002442 6060005006105 12120010012210