20220220220221 has 32 divisors (see below), whose sum is σ = 23528094105600. Its totient is φ = 17019819841920.

The previous prime is 20220220220201. The next prime is 20220220220257. The reversal of 20220220220221 is 12202202202202.

It is not a de Polignac number, because 20220220220221 - 2¹⁷ = 20220220089149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220220220201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142970940 + ... + 143112298.

It is an arithmetic number, because the mean of its divisors is an integer number (735252940800).

Almost surely, 2^{20220220220221} is an apocalyptic number.

It is an amenable number.

20220220220221 is a deficient number, since it is larger than the sum of its proper divisors (3307873885379).

20220220220221 is a wasteful number, since it uses less digits than its factorization.

20220220220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142929.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20220220220221 its reverse (12202202202202), we get a palindrome (32422422422423).

The spelling of 20220220220221 in words is "twenty trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-one".