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121221120095 = 5197123067127
BaseRepresentation
bin111000011100101010…
…1111000000001011111
3102120220002220221100122
41300321111320001133
53441230101320340
6131404353145155
711520654343205
oct1607125700137
9376802827318
10121221120095
1147456186789
121b5b085b1bb
13b57b194a3a
145c1d5b3075
1532472b3db5
hex1c3957805f

121221120095 has 8 divisors (see below), whose sum is σ = 146203748064. Its totient is φ = 96484626784.

The previous prime is 121221120079. The next prime is 121221120101. The reversal of 121221120095 is 590021122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121221120095 - 24 = 121221120079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61532579 + ... + 61534548.

It is an arithmetic number, because the mean of its divisors is an integer number (18275468508).

Almost surely, 2121221120095 is an apocalyptic number.

121221120095 is a deficient number, since it is larger than the sum of its proper divisors (24982627969).

121221120095 is a wasteful number, since it uses less digits than its factorization.

121221120095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123067329.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 121221120095 in words is "one hundred twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, ninety-five".

Divisors: 1 5 197 985 123067127 615335635 24244224019 121221120095