2221476493 has 2 divisors, whose sum is σ = 2221476494. Its totient is φ = 2221476492.

The previous prime is 2221476487. The next prime is 2221476511. The reversal of 2221476493 is 3946741222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2204020809 + 17455684 = 46947^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221476493 - 2¹⁷ = 2221345421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221476403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110738246 + 1110738247.

It is an arithmetic number, because the mean of its divisors is an integer number (1110738247).

Almost surely, 2^2221476493 is an apocalyptic number.

It is an amenable number.

2221476493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221476493 is an equidigital number, since it uses as much as digits as its factorization.

2221476493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 2221476493 is about 47132.5417625657. The cubic root of 2221476493 is about 1304.8098924982.

The spelling of 2221476493 in words is "two billion, two hundred twenty-one million, four hundred seventy-six thousand, four hundred ninety-three".