4221213020 has 48 divisors (see below), whose sum is σ = 8968270080. Its totient is φ = 1668777984.

The previous prime is 4221213011. The next prime is 4221213091. The reversal of 4221213020 is 203121224.

It is a self number, because there is not a number n which added to its sum of digits gives 4221213020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2398901 + ... + 2400659.

It is an arithmetic number, because the mean of its divisors is an integer number (186838960).

Almost surely, 2^4221213020 is an apocalyptic number.

It is an amenable number.

4221213020 is an abundant number, since it is smaller than the sum of its proper divisors (4747057060).

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

4221213020 is a wasteful number, since it uses less digits than its factorization.

4221213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4221213020 is about 64970.8628540517. The cubic root of 4221213020 is about 1616.1404106136.

Adding to 4221213020 its reverse (203121224), we get a palindrome (4424334244).

The spelling of 4221213020 in words is "four billion, two hundred twenty-one million, two hundred thirteen thousand, twenty".