2221660327 has 2 divisors, whose sum is σ = 2221660328. Its totient is φ = 2221660326.

The previous prime is 2221660313. The next prime is 2221660349. The reversal of 2221660327 is 7230661222.

2221660327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221660327 - 2¹⁹ = 2221136039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221660387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110830163 + 1110830164.

It is an arithmetic number, because the mean of its divisors is an integer number (1110830164).

Almost surely, 2^2221660327 is an apocalyptic number.

2221660327 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221660327 is an equidigital number, since it uses as much as digits as its factorization.

2221660327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 2221660327 is about 47134.4919034883. The cubic root of 2221660327 is about 1304.8458838470.

The spelling of 2221660327 in words is "two billion, two hundred twenty-one million, six hundred sixty thousand, three hundred twenty-seven".