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212020223 is a prime number
BaseRepresentation
bin11001010001100…
…10101111111111
3112202221202001212
430220302233333
5413234121343
633012155035
75153066522
oct1450625777
9482852055
10212020223
11a9752a28
125b008a7b
1334c0556c
1420230bb9
1513930c18
hexca32bff

212020223 has 2 divisors, whose sum is σ = 212020224. Its totient is φ = 212020222.

The previous prime is 212020213. The next prime is 212020261. The reversal of 212020223 is 322020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212020223 - 214 = 212003839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212020198 and 212020207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010111 + 106010112.

It is an arithmetic number, because the mean of its divisors is an integer number (106010112).

Almost surely, 2212020223 is an apocalyptic number.

212020223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020223 is an equidigital number, since it uses as much as digits as its factorization.

212020223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 212020223 is about 14560.9142226716. The cubic root of 212020223 is about 596.2921549716.

Adding to 212020223 its reverse (322020212), we get a palindrome (534040435).

The spelling of 212020223 in words is "two hundred twelve million, twenty thousand, two hundred twenty-three".