4021284901 has 2 divisors, whose sum is σ = 4021284902. Its totient is φ = 4021284900.

The previous prime is 4021284899. The next prime is 4021284929. The reversal of 4021284901 is 1094821204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3953139876 + 68145025 = 62874^2 + 8255^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021284901 - 2¹ = 4021284899 is a prime.

Together with 4021284899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021284931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010642450 + 2010642451.

It is an arithmetic number, because the mean of its divisors is an integer number (2010642451).

Almost surely, 2^4021284901 is an apocalyptic number.

It is an amenable number.

4021284901 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021284901 is an equidigital number, since it uses as much as digits as its factorization.

4021284901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 4021284901 is about 63413.6018611149. The cubic root of 4021284901 is about 1590.2117119826.

The spelling of 4021284901 in words is "four billion, twenty-one million, two hundred eighty-four thousand, nine hundred one".