220021001022 has 32 divisors (see below), whose sum is σ = 448293162240. Its totient is φ = 71976844800.

The previous prime is 220021000999. The next prime is 220021001027. The reversal of 220021001022 is 220100120022.

220021001022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220021000989 and 220021001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021001027) by changing a digit.

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, 1387747 + ... + 1538142.

It is an arithmetic number, because the mean of its divisors is an integer number (14009161320).

Almost surely, 2^220021001022 is an apocalyptic number.

220021001022 is an abundant number, since it is smaller than the sum of its proper divisors (228272161218).

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

220021001022 is a wasteful number, since it uses less digits than its factorization.

220021001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926128.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220021001022 its reverse (220100120022), we get a palindrome (440121121044).

The spelling of 220021001022 in words is "two hundred twenty billion, twenty-one million, one thousand, twenty-two".