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202001021102201 = 1019198234564379
BaseRepresentation
bin101101111011100000000111…
…000110110110100001111001
3222111020002221110212021102112
4231323200013012312201321
5202434041042400232301
61553341553224142105
760356043420123116
oct5573400706664171
9874202843767375
10202001021102201
1159400174290352
121a7a5199307935
1388937cb23b429
1437c4c89d5590d
15185479ba1a9bb
hexb7b8071b6879

202001021102201 has 4 divisors (see below), whose sum is σ = 202199255667600. Its totient is φ = 201802786536804.

The previous prime is 202001021102197. The next prime is 202001021102203. The reversal of 202001021102201 is 102201120100202.

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 202001021102201 - 22 = 202001021102197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001021102203) 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, 99117281171 + ... + 99117283208.

It is an arithmetic number, because the mean of its divisors is an integer number (50549813916900).

Almost surely, 2202001021102201 is an apocalyptic number.

It is an amenable number.

202001021102201 is a deficient number, since it is larger than the sum of its proper divisors (198234565399).

202001021102201 is a wasteful number, since it uses less digits than its factorization.

202001021102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198234565398.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202001021102201 its reverse (102201120100202), we get a palindrome (304202141202403).

The spelling of 202001021102201 in words is "two hundred two trillion, one billion, twenty-one million, one hundred two thousand, two hundred one".

Divisors: 1 1019 198234564379 202001021102201