4421211720 has 32 divisors (see below), whose sum is σ = 13263635520. Its totient is φ = 1178989760.

The previous prime is 4421211719. The next prime is 4421211749. The reversal of 4421211720 is 271121244.

It is a super-2 number, since 2×4421211720² = 39094226146130716800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18421596 + ... + 18421835.

It is an arithmetic number, because the mean of its divisors is an integer number (414488610).

Almost surely, 2^4421211720 is an apocalyptic number.

4421211720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4421211720 is an abundant number, since it is smaller than the sum of its proper divisors (8842423800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4421211720 is a wasteful number, since it uses less digits than its factorization.

4421211720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36843445 (or 36843441 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 4421211720 is about 66492.1929251848. The cubic root of 4421211720 is about 1641.2715352071.

Adding to 4421211720 its reverse (271121244), we get a palindrome (4692332964).

The spelling of 4421211720 in words is "four billion, four hundred twenty-one million, two hundred eleven thousand, seven hundred twenty".