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20020202222201 = 86323198380327
BaseRepresentation
bin1001000110101010100010…
…00010101011001001111001
32121212220122022111201121122
410203111101002223021321
510111002333232102301
6110325053125515025
74134261163046606
oct443252102531171
977786568451548
1020020202222201
11641957a257645
1222b4071272a75
13b22b8784327c
144d2da93436ad
1524ab8874981b
hex1235510ab279

20020202222201 has 4 divisors (see below), whose sum is σ = 20043400603392. Its totient is φ = 19997003841012.

The previous prime is 20020202222173. The next prime is 20020202222221. The reversal of 20020202222201 is 10222220202002.

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 20020202222201 - 210 = 20020202221177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020202222201.

It is not an unprimeable number, because it can be changed into a prime (20020202222221) 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, 11599189301 + ... + 11599191026.

It is an arithmetic number, because the mean of its divisors is an integer number (5010850150848).

Almost surely, 220020202222201 is an apocalyptic number.

It is an amenable number.

20020202222201 is a deficient number, since it is larger than the sum of its proper divisors (23198381191).

20020202222201 is an equidigital number, since it uses as much as digits as its factorization.

20020202222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23198381190.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20020202222201 its reverse (10222220202002), we get a palindrome (30242422424203).

The spelling of 20020202222201 in words is "twenty trillion, twenty billion, two hundred two million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 863 23198380327 20020202222201