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2010000121021 = 2697472119409
BaseRepresentation
bin11101001111111101010…
…101111101110010111101
321010011011100211122002201
4131033331111331302331
5230412440012333041
64135214210151501
7265134451062604
oct35177525756275
97104140748081
102010000121021
11705488738812
12285674b82591
13117708294949
146d3daa44a3b
1537440db1631
hex1d3fd57dcbd

2010000121021 has 4 divisors (see below), whose sum is σ = 2017472240700. Its totient is φ = 2002528001344.

The previous prime is 2010000121001. The next prime is 2010000121049. The reversal of 2010000121021 is 1201210000102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217384400025 + 1792615720996 = 466245^2 + 1338886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010000121021 - 213 = 2010000112829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010000120989 and 2010000121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010000121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3736059436 + ... + 3736059973.

It is an arithmetic number, because the mean of its divisors is an integer number (504368060175).

Almost surely, 22010000121021 is an apocalyptic number.

It is an amenable number.

2010000121021 is a deficient number, since it is larger than the sum of its proper divisors (7472119679).

2010000121021 is an equidigital number, since it uses as much as digits as its factorization.

2010000121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472119678.

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

Adding to 2010000121021 its reverse (1201210000102), we get a palindrome (3211210121123).

The spelling of 2010000121021 in words is "two trillion, ten billion, one hundred twenty-one thousand, twenty-one".

Divisors: 1 269 7472119409 2010000121021