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12102021212010 = 23513031873165293
BaseRepresentation
bin1011000000011011100010…
…1011001110011101101010
31120211221102122222122200020
42300012320223032131222
53041234414412241020
641423331454421310
72356225240010262
oct260067053163552
946757378878606
1012102021212010
113946490525454
121435552501836
1369a2a5b92662
142dba5325a7a2
1515ec0480cc40
hexb01b8ace76a

12102021212010 has 64 divisors (see below), whose sum is σ = 29082836636928. Its totient is φ = 3222987715584.

The previous prime is 12102021211933. The next prime is 12102021212011. The reversal of 12102021212010 is 1021212020121.

12102021212010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12102021212011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73132924 + ... + 73298216.

It is an arithmetic number, because the mean of its divisors is an integer number (454419322452).

Almost surely, 212102021212010 is an apocalyptic number.

12102021212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102021212010 is an abundant number, since it is smaller than the sum of its proper divisors (16980815424918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102021212010 is a wasteful number, since it uses less digits than its factorization.

12102021212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168479.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102021212010 its reverse (1021212020121), we get a palindrome (13123233232131).

The spelling of 12102021212010 in words is "twelve trillion, one hundred two billion, twenty-one million, two hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 1303 1873 2606 3746 3909 5619 6515 7818 9365 11238 13030 18730 19545 28095 39090 56190 165293 330586 495879 826465 991758 1652930 2440519 2479395 4881038 4958790 7321557 12202595 14643114 24405190 36607785 73215570 215376779 309593789 430753558 619187578 646130337 928781367 1076883895 1292260674 1547968945 1857562734 2153767790 3095937890 3230651685 4643906835 6461303370 9287813670 403400707067 806801414134 1210202121201 2017003535335 2420404242402 4034007070670 6051010606005 12102021212010