4220811 has 36 divisors (see below), whose sum is σ = 7522632. Its totient is φ = 2265984.

The previous prime is 4220809. The next prime is 4220813. The reversal of 4220811 is 1180224.

It is an interprime number because it is at equal distance from previous prime (4220809) and next prime (4220813).

It is not a de Polignac number, because 4220811 - 2¹ = 4220809 is a prime.

4220811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4220813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7216 + ... + 7778.

It is an arithmetic number, because the mean of its divisors is an integer number (208962).

Almost surely, 2^4220811 is an apocalyptic number.

4220811 is a deficient number, since it is larger than the sum of its proper divisors (3301821).

4220811 is a wasteful number, since it uses less digits than its factorization.

4220811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4220811 is about 2054.4612432460. The cubic root of 4220811 is about 161.6089102977.

The spelling of 4220811 in words is "four million, two hundred twenty thousand, eight hundred eleven".