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212021120033 = 960122083233
BaseRepresentation
bin1100010101110101110…
…0011000110000100001
3202021021010010212002022
43011131130120300201
511433204401320113
6241222352231225
721214036533122
oct3053534306041
9667233125068
10212021120033
1181a10438648
123511153b515
1316cbb969b58
14a39483a049
1557ad9b7908
hex315d718c21

212021120033 has 4 divisors (see below), whose sum is σ = 212043212868. Its totient is φ = 211999027200.

The previous prime is 212021120021. The next prime is 212021120093. The reversal of 212021120033 is 330021120212.

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 166046470144 + 45974649889 = 407488^2 + 214417^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021120033 - 218 = 212020857889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021119993 and 212021120020.

It is not an unprimeable number, because it can be changed into a prime (212021120093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11032016 + ... + 11051217.

It is an arithmetic number, because the mean of its divisors is an integer number (53010803217).

Almost surely, 2212021120033 is an apocalyptic number.

It is an amenable number.

212021120033 is a deficient number, since it is larger than the sum of its proper divisors (22092835).

212021120033 is an equidigital number, since it uses as much as digits as its factorization.

212021120033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22092834.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021120033 its reverse (330021120212), we get a palindrome (542042240245).

The spelling of 212021120033 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, thirty-three".

Divisors: 1 9601 22083233 212021120033