2221450471 has 2 divisors, whose sum is σ = 2221450472. Its totient is φ = 2221450470.

The previous prime is 2221450463. The next prime is 2221450499. The reversal of 2221450471 is 1740541222.

It is an a-pointer prime, because the next prime (2221450499) can be obtained adding 2221450471 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221450471 - 2³ = 2221450463 is a prime.

It is a super-3 number, since 3×2221450471³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221450171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110725235 + 1110725236.

It is an arithmetic number, because the mean of its divisors is an integer number (1110725236).

Almost surely, 2^2221450471 is an apocalyptic number.

2221450471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221450471 is an equidigital number, since it uses as much as digits as its factorization.

2221450471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2221450471 is about 47132.2657104451. The cubic root of 2221450471 is about 1304.8047977042.

Adding to 2221450471 its reverse (1740541222), we get a palindrome (3961991693).

The spelling of 2221450471 in words is "two billion, two hundred twenty-one million, four hundred fifty thousand, four hundred seventy-one".