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212021100253 is a prime number
BaseRepresentation
bin1100010101110101110…
…0010011111011011101
3202021021010002211221201
43011131130103323131
511433204400202003
6241222351555501
721214036421344
oct3053534237335
9667233084851
10212021100253
1181a104247a6
123511152bb91
1316cbb960b51
14a394832b5b
1557ad9b1b1d
hex315d713edd

212021100253 has 2 divisors, whose sum is σ = 212021100254. Its totient is φ = 212021100252.

The previous prime is 212021100173. The next prime is 212021100271. The reversal of 212021100253 is 352001120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194835725604 + 17185374649 = 441402^2 + 131093^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021100253 - 225 = 211987545821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212021100253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021110253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010550126 + 106010550127.

It is an arithmetic number, because the mean of its divisors is an integer number (106010550127).

Almost surely, 2212021100253 is an apocalyptic number.

It is an amenable number.

212021100253 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021100253 is an equidigital number, since it uses as much as digits as its factorization.

212021100253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 212021100253 its reverse (352001120212), we get a palindrome (564022220465).

The spelling of 212021100253 in words is "two hundred twelve billion, twenty-one million, one hundred thousand, two hundred fifty-three".