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121202011111121 is a prime number
BaseRepresentation
bin11011100011101110001010…
…110100010111111011010001
3120220010210120112202011201222
4123203232022310113323101
5111341233204321023441
61105435234002334425
734346361552100013
oct3343561264277321
9526123515664658
10121202011111121
11356895365a6906
121171591835a415
1352823ba57c255
1421d02cc7061b3
15e02b20b9ad4b
hex6e3b8ad17ed1

121202011111121 has 2 divisors, whose sum is σ = 121202011111122. Its totient is φ = 121202011111120.

The previous prime is 121202011111063. The next prime is 121202011111151. The reversal of 121202011111121 is 121111110202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118098209290000 + 3103801821121 = 10867300^2 + 1761761^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202011111121 - 210 = 121202011110097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121202011111121.

It is not a weakly prime, because it can be changed into another prime (121202011111151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601005555560 + 60601005555561.

It is an arithmetic number, because the mean of its divisors is an integer number (60601005555561).

Almost surely, 2121202011111121 is an apocalyptic number.

It is an amenable number.

121202011111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202011111121 is an equidigital number, since it uses as much as digits as its factorization.

121202011111121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121202011111121 its reverse (121111110202121), we get a palindrome (242313121313242).

The spelling of 121202011111121 in words is "one hundred twenty-one trillion, two hundred two billion, eleven million, one hundred eleven thousand, one hundred twenty-one".