220221002021 has 8 divisors (see below), whose sum is σ = 231051545088. Its totient is φ = 209623374000.

The previous prime is 220221002017. The next prime is 220221002051. The reversal of 220221002021 is 120200122022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220221002021 - 2² = 220221002017 is a prime.

It is a super-2 number, since 2×220221002021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220221001987 and 220221002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58226825 + ... + 58230606.

It is an arithmetic number, because the mean of its divisors is an integer number (28881443136).

Almost surely, 2^220221002021 is an apocalyptic number.

It is an amenable number.

220221002021 is a deficient number, since it is larger than the sum of its proper divisors (10830543067).

220221002021 is a wasteful number, since it uses less digits than its factorization.

220221002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116457523.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220221002021 its reverse (120200122022), we get a palindrome (340421124043).

The spelling of 220221002021 in words is "two hundred twenty billion, two hundred twenty-one million, two thousand, twenty-one".