220201030021 has 16 divisors (see below), whose sum is σ = 262652684544. Its totient is φ = 180501260544.

The previous prime is 220201030009. The next prime is 220201030033. The reversal of 220201030021 is 120030102022.

It is an interprime number because it is at equal distance from previous prime (220201030009) and next prime (220201030033).

It is a cyclic number.

It is not a de Polignac number, because 220201030021 - 2¹⁵ = 220200997253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201029983 and 220201030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682701 + ... + 952093.

It is an arithmetic number, because the mean of its divisors is an integer number (16415792784).

Almost surely, 2^220201030021 is an apocalyptic number.

It is an amenable number.

220201030021 is a deficient number, since it is larger than the sum of its proper divisors (42451654523).

220201030021 is a wasteful number, since it uses less digits than its factorization.

220201030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274500.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 220201030021 its reverse (120030102022), we get a palindrome (340231132043).

The spelling of 220201030021 in words is "two hundred twenty billion, two hundred one million, thirty thousand, twenty-one".