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12102021200101 = 723340740915393
BaseRepresentation
bin1011000000011011100010…
…1011001011100011100101
31120211221102122222001100011
42300012320223023203211
53041234414411400401
641423331454250221
72356225236630460
oct260067053134345
946757378861304
1012102021200101
113946490517508
1214355524b6971
1369a2a5b8a101
142dba532562d7
1515ec04809451
hexb01b8acb8e5

12102021200101 has 32 divisors (see below), whose sum is σ = 14442666467328. Its totient is φ = 9914978261760.

The previous prime is 12102021200081. The next prime is 12102021200107. The reversal of 12102021200101 is 10100212020121.

It is a cyclic number.

It is not a de Polignac number, because 12102021200101 - 217 = 12102021069029 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 (12102021200107) 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, 2244021261 + ... + 2244026653.

It is an arithmetic number, because the mean of its divisors is an integer number (451333327104).

Almost surely, 212102021200101 is an apocalyptic number.

It is an amenable number.

12102021200101 is a deficient number, since it is larger than the sum of its proper divisors (2340645267227).

12102021200101 is a wasteful number, since it uses less digits than its factorization.

12102021200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921.

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

Adding to 12102021200101 its reverse (10100212020121), we get a palindrome (22202233220222).

The spelling of 12102021200101 in words is "twelve trillion, one hundred two billion, twenty-one million, two hundred thousand, one hundred one".

Divisors: 1 7 23 161 3407 4091 5393 23849 28637 37751 78361 94093 124039 548527 658651 868273 13938037 18373951 22062763 97566259 128617657 154439341 320574851 422600873 507443549 2244023957 2958206111 3552104843 75167833541 526174834787 1728860171443 12102021200101