4228220521902 has 16 divisors (see below), whose sum is σ = 9106936508880. Its totient is φ = 1300990929792.

The previous prime is 4228220521883. The next prime is 4228220521909. The reversal of 4228220521902 is 2091250228224.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228220521909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27103977627 + ... + 27103977782.

It is an arithmetic number, because the mean of its divisors is an integer number (569183531805).

Almost surely, 2^{4228220521902} is an apocalyptic number.

4228220521902 is an abundant number, since it is smaller than the sum of its proper divisors (4878715986978).

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

4228220521902 is a wasteful number, since it uses less digits than its factorization.

4228220521902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54207955427.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 4228220521902 in words is "four trillion, two hundred twenty-eight billion, two hundred twenty million, five hundred twenty-one thousand, nine hundred two".