4220216556828 has 24 divisors (see below), whose sum is σ = 9849073476480. Its totient is φ = 1406467207920.

The previous prime is 4220216556823. The next prime is 4220216556833. The reversal of 4220216556828 is 8286556120224.

It is an interprime number because it is at equal distance from previous prime (4220216556823) and next prime (4220216556833).

It is a super-3 number, since 3×4220216556828³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220216556823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33890808 + ... + 34015103.

It is an arithmetic number, because the mean of its divisors is an integer number (410378061520).

Almost surely, 2^{4220216556828} is an apocalyptic number.

It is an amenable number.

4220216556828 is an abundant number, since it is smaller than the sum of its proper divisors (5628856919652).

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

4220216556828 is a wasteful number, since it uses less digits than its factorization.

4220216556828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67911097 (or 67911095 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 4220216556828 in words is "four trillion, two hundred twenty billion, two hundred sixteen million, five hundred fifty-six thousand, eight hundred twenty-eight".