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202012200101 = 214657941093
BaseRepresentation
bin1011110000100011011…
…1011000110010100101
3201022102120121001010002
42330020313120302211
511302210110400401
6232445250311045
720411023240415
oct2741067306245
9638376531102
10202012200101
1178744690998
1233199588485
131608517861a
149ac5434645
1553c4e46a6b
hex2f08dd8ca5

202012200101 has 4 divisors (see below), whose sum is σ = 202013355852. Its totient is φ = 202011044352.

The previous prime is 202012200031. The next prime is 202012200127. The reversal of 202012200101 is 101002210202.

It is a happy number.

202012200101 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 34097469025 + 167914731076 = 184655^2 + 409774^2 .

It is a cyclic number.

It is not a de Polignac number, because 202012200101 - 230 = 200938458277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012200001) 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, 255890 + ... + 685203.

It is an arithmetic number, because the mean of its divisors is an integer number (50503338963).

Almost surely, 2202012200101 is an apocalyptic number.

It is an amenable number.

202012200101 is a deficient number, since it is larger than the sum of its proper divisors (1155751).

202012200101 is an equidigital number, since it uses as much as digits as its factorization.

202012200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155750.

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

Adding to 202012200101 its reverse (101002210202), we get a palindrome (303014410303).

The spelling of 202012200101 in words is "two hundred two billion, twelve million, two hundred thousand, one hundred one".

Divisors: 1 214657 941093 202012200101