20022210221020 has 48 divisors (see below), whose sum is σ = 48959970671808. Its totient is φ = 6735234055680.

The previous prime is 20022210220997. The next prime is 20022210221021. The reversal of 20022210221020 is 2012201222002.

It is a junction number, because it is equal to n+sod(n) for n = 20022210220985 and 20022210221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022210221021) 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 15 ways as a sum of consecutive naturals, for example, 1349198121 + ... + 1349212960.

It is an arithmetic number, because the mean of its divisors is an integer number (1019999388996).

Almost surely, 2^{20022210221020} is an apocalyptic number.

20022210221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022210221020 is an abundant number, since it is smaller than the sum of its proper divisors (28937760450788).

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

20022210221020 is a wasteful number, since it uses less digits than its factorization.

20022210221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698411150 (or 2698411148 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20022210221020 its reverse (2012201222002), we get a palindrome (22034411443022).

The spelling of 20022210221020 in words is "twenty trillion, twenty-two billion, two hundred ten million, two hundred twenty-one thousand, twenty".