4661221403 has 2 divisors, whose sum is σ = 4661221404. Its totient is φ = 4661221402.

The previous prime is 4661221399. The next prime is 4661221421. The reversal of 4661221403 is 3041221664.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4661221403 - 2² = 4661221399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4661221463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2330610701 + 2330610702.

It is an arithmetic number, because the mean of its divisors is an integer number (2330610702).

Almost surely, 2^4661221403 is an apocalyptic number.

4661221403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661221403 is an equidigital number, since it uses as much as digits as its factorization.

4661221403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4661221403 is about 68273.1382243412. The cubic root of 4661221403 is about 1670.4490889464.

The spelling of 4661221403 in words is "four billion, six hundred sixty-one million, two hundred twenty-one thousand, four hundred three".