4221020983 has 2 divisors, whose sum is σ = 4221020984. Its totient is φ = 4221020982.

The previous prime is 4221020891. The next prime is 4221021031. The reversal of 4221020983 is 3890201224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4221020983 - 2⁹ = 4221020471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221020483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110510491 + 2110510492.

It is an arithmetic number, because the mean of its divisors is an integer number (2110510492).

Almost surely, 2^4221020983 is an apocalyptic number.

4221020983 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221020983 is an equidigital number, since it uses as much as digits as its factorization.

4221020983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4221020983 is about 64969.3849670751. The cubic root of 4221020983 is about 1616.1159023770.

The spelling of 4221020983 in words is "four billion, two hundred twenty-one million, twenty thousand, nine hundred eighty-three".