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12000210002021 = 114311104978611
BaseRepresentation
bin1010111010100000010001…
…0000010010000001100101
31120111012122021020022102002
42232220010100102001211
53033102412230031041
641304453111055045
72345662251005213
oct256500420220145
946435567208362
1012000210002021
11390729577949a
12141987a071485
136907cc069637
142d6b55845cb3
1515c2465a359b
hexaea04412065

12000210002021 has 4 divisors (see below), whose sum is σ = 12000315094944. Its totient is φ = 12000104909100.

The previous prime is 12000210002009. The next prime is 12000210002023. The reversal of 12000210002021 is 12020001200021.

It is a happy number.

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 12000210002021 - 222 = 12000205807717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000210001993 and 12000210002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000210002023) 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, 52374995 + ... + 52603616.

It is an arithmetic number, because the mean of its divisors is an integer number (3000078773736).

Almost surely, 212000210002021 is an apocalyptic number.

It is an amenable number.

12000210002021 is a deficient number, since it is larger than the sum of its proper divisors (105092923).

12000210002021 is a wasteful number, since it uses less digits than its factorization.

12000210002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105092922.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000210002021 its reverse (12020001200021), we get a palindrome (24020211202042).

The spelling of 12000210002021 in words is "twelve trillion, two hundred ten million, two thousand, twenty-one".

Divisors: 1 114311 104978611 12000210002021