4020221311 has 2 divisors, whose sum is σ = 4020221312. Its totient is φ = 4020221310.

The previous prime is 4020221279. The next prime is 4020221321. The reversal of 4020221311 is 1131220204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4020221311 - 2⁵ = 4020221279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020221321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010110655 + 2010110656.

It is an arithmetic number, because the mean of its divisors is an integer number (2010110656).

Almost surely, 2^4020221311 is an apocalyptic number.

4020221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020221311 is an equidigital number, since it uses as much as digits as its factorization.

4020221311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4020221311 is about 63405.2151719399. The cubic root of 4020221311 is about 1590.0715012082.

Adding to 4020221311 its reverse (1131220204), we get a palindrome (5151441515).

The spelling of 4020221311 in words is "four billion, twenty million, two hundred twenty-one thousand, three hundred eleven".