20202220202201 has 6 divisors (see below), whose sum is σ = 20538833388606. Its totient is φ = 19871036260800.

The previous prime is 20202220202183. The next prime is 20202220202237. The reversal of 20202220202201 is 10220202220202.

It can be written as a sum of positive squares in 3 ways, for example, as 305089417801 + 19897130784400 = 552349^2 + 4460620^2 .

It is not a de Polignac number, because 20202220202201 - 2³⁸ = 19927342295257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20202220202201.

It is not an unprimeable number, because it can be changed into a prime (20202220202701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2714618720 + ... + 2714626161.

It is an arithmetic number, because the mean of its divisors is an integer number (3423138898101).

Almost surely, 2^{20202220202201} is an apocalyptic number.

It is an amenable number.

20202220202201 is a deficient number, since it is larger than the sum of its proper divisors (336613186405).

20202220202201 is an frugal number, since it uses more digits than its factorization.

20202220202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429245003 (or 5429244942 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20202220202201 its reverse (10220202220202), we get a palindrome (30422422422403).

The spelling of 20202220202201 in words is "twenty trillion, two hundred two billion, two hundred twenty million, two hundred two thousand, two hundred one".