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12101200000001 = 7151106110790413
BaseRepresentation
bin1011000000011000011110…
…1110100011010000000001
31120211212022102201202120122
42300012013232203100001
53041231224200000001
641423114201150025
72356166005556210
oct260060756432001
946755272652518
1012101200000001
1139460a9a16742
12143536348b315
1369a1a49c37a8
142db9b616d077
1515eba7695b1b
hexb0187ba3401

12101200000001 has 16 divisors (see below), whose sum is σ = 13934654316288. Its totient is φ = 10294053048000.

The previous prime is 12101199999961. The next prime is 12101200000037. The reversal of 12101200000001 is 10000000210121.

It is a cyclic number.

It is not a de Polignac number, because 12101200000001 - 242 = 7703153488897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101200000081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4273730 + ... + 6516683.

It is an arithmetic number, because the mean of its divisors is an integer number (870915894768).

Almost surely, 212101200000001 is an apocalyptic number.

It is an amenable number.

12101200000001 is a deficient number, since it is larger than the sum of its proper divisors (1833454316287).

12101200000001 is a wasteful number, since it uses less digits than its factorization.

12101200000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10791632.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12101200000001 its reverse (10000000210121), we get a palindrome (22101200210122).

The spelling of 12101200000001 in words is "twelve trillion, one hundred one billion, two hundred million, one", and thus it is an aban number.

Divisors: 1 7 151 1057 1061 7427 160211 1121477 10790413 75532891 1629352363 11405466541 11448628193 80140397351 1728742857143 12101200000001