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212021103001 = 1531138485371
BaseRepresentation
bin1100010101110101110…
…0010100100110011001
3202021021010002222201111
43011131130110212121
511433204400244001
6241222352020321
721214036432351
oct3053534244631
9667233088644
10212021103001
1181a10426874
12351115316a1
1316cbb962186
14a394833b61
1557ad9b2851
hex315d714999

212021103001 has 4 divisors (see below), whose sum is σ = 212159589904. Its totient is φ = 211882616100.

The previous prime is 212021102971. The next prime is 212021103029. The reversal of 212021103001 is 100301120212.

212021103001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212021103001 - 27 = 212021102873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69241155 + ... + 69244216.

It is an arithmetic number, because the mean of its divisors is an integer number (53039897476).

Almost surely, 2212021103001 is an apocalyptic number.

It is an amenable number.

212021103001 is a deficient number, since it is larger than the sum of its proper divisors (138486903).

212021103001 is a wasteful number, since it uses less digits than its factorization.

212021103001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138486902.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 212021103001 its reverse (100301120212), we get a palindrome (312322223213).

The spelling of 212021103001 in words is "two hundred twelve billion, twenty-one million, one hundred three thousand, one".

Divisors: 1 1531 138485371 212021103001