4421221608 has 16 divisors (see below), whose sum is σ = 11053054080. Its totient is φ = 1473740528.

The previous prime is 4421221589. The next prime is 4421221613. The reversal of 4421221608 is 8061221244.

It is a super-2 number, since 2×4421221608² = 39094401014092211328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92108760 + ... + 92108807.

It is an arithmetic number, because the mean of its divisors is an integer number (690815880).

Almost surely, 2^4421221608 is an apocalyptic number.

It is an amenable number.

4421221608 is an abundant number, since it is smaller than the sum of its proper divisors (6631832472).

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

4421221608 is a wasteful number, since it uses less digits than its factorization.

4421221608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184217576 (or 184217572 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 4421221608 is about 66492.2672797371. The cubic root of 4421221608 is about 1641.2727587692.

The spelling of 4421221608 in words is "four billion, four hundred twenty-one million, two hundred twenty-one thousand, six hundred eight".