4220414821 has 16 divisors (see below), whose sum is σ = 4851753984. Its totient is φ = 3596229504.

The previous prime is 4220414819. The next prime is 4220414833. The reversal of 4220414821 is 1284140224.

It is not a de Polignac number, because 4220414821 - 2¹ = 4220414819 is a prime.

It is a super-2 number, since 2×4220414821² = 35623802522632924082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4220414821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220414321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486215 + ... + 1489051.

It is an arithmetic number, because the mean of its divisors is an integer number (303234624).

Almost surely, 2^4220414821 is an apocalyptic number.

It is an amenable number.

4220414821 is a deficient number, since it is larger than the sum of its proper divisors (631339163).

4220414821 is a wasteful number, since it uses less digits than its factorization.

4220414821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 4220414821 is about 64964.7198177595. The cubic root of 4220414821 is about 1616.0385376076.

The spelling of 4220414821 in words is "four billion, two hundred twenty million, four hundred fourteen thousand, eight hundred twenty-one".