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BaseRepresentation
bin110111111000010011…
…1111100101011111101
3102110202002021120020202
41233300213330223331
53431230241333041
6131043332253245
711445511461455
oct1576047745375
9373662246222
10120001121021
114698a560391
121b310171225
13b4154ba6b2
145b45558d65
1531c5127a9b
hex1bf09fcafd

120001121021 has 2 divisors, whose sum is σ = 120001121022. Its totient is φ = 120001121020.

The previous prime is 120001120937. The next prime is 120001121077. The reversal of 120001121021 is 120121100021.

Adding to 120001121021 its reverse (120121100021), we get a palindrome (240122221042).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76182072121 + 43819048900 = 276011^2 + 209330^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001121021 - 214 = 120001104637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120001120993 and 120001121011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120001121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000560510 + 60000560511.

It is an arithmetic number, because the mean of its divisors is an integer number (60000560511).

Almost surely, 2120001121021 is an apocalyptic number.

It is an amenable number.

120001121021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001121021 is an equidigital number, since it uses as much as digits as its factorization.

120001121021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The spelling of 120001121021 in words is "one hundred twenty billion, one million, one hundred twenty-one thousand, twenty-one".