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121202010000001 = 717314572857143
BaseRepresentation
bin11011100011101110001010…
…110000001000101010000001
3120220010210120110122201120101
4123203232022300020222001
5111341233204030000001
61105435233522442401
734346361536461420
oct3343561260105201
9526123513581511
10121202010000001
1135689535a08027
1211715917b03401
1352823ba280598
1421d02cc4d72b7
15e02b20a2ba01
hex6e3b8ac08a81

121202010000001 has 4 divisors (see below), whose sum is σ = 138516582857152. Its totient is φ = 103887437142852.

The previous prime is 121202009999999. The next prime is 121202010000107. The reversal of 121202010000001 is 100000010202121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121202010000001 - 21 = 121202009999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202010000601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8657286428565 + ... + 8657286428578.

It is an arithmetic number, because the mean of its divisors is an integer number (34629145714288).

Almost surely, 2121202010000001 is an apocalyptic number.

It is an amenable number.

121202010000001 is a deficient number, since it is larger than the sum of its proper divisors (17314572857151).

121202010000001 is an equidigital number, since it uses as much as digits as its factorization.

121202010000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17314572857150.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121202010000001 its reverse (100000010202121), we get a palindrome (221202020202122).

The spelling of 121202010000001 in words is "one hundred twenty-one trillion, two hundred two billion, ten million, one", and thus it is an aban number.

Divisors: 1 7 17314572857143 121202010000001