20202222211201 has 4 divisors (see below), whose sum is σ = 20202480534100. Its totient is φ = 20201963888304.

The previous prime is 20202222211121. The next prime is 20202222211211. The reversal of 20202222211201 is 10211222220202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8272520687601 + 11929701523600 = 2876199^2 + 3453940^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202222211201 - 2³⁵ = 20167862472833 is a prime.

It is a super-3 number, since 3×20202222211201³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202222211211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129044106 + ... + 129200563.

It is an arithmetic number, because the mean of its divisors is an integer number (5050620133525).

Almost surely, 2^{20202222211201} is an apocalyptic number.

It is an amenable number.

20202222211201 is a deficient number, since it is larger than the sum of its proper divisors (258322899).

20202222211201 is an equidigital number, since it uses as much as digits as its factorization.

20202222211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258322898.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20202222211201 its reverse (10211222220202), we get a palindrome (30413444431403).

Subtracting from 20202222211201 its reverse (10211222220202), we obtain a palindrome (9990999990999).

The spelling of 20202222211201 in words is "twenty trillion, two hundred two billion, two hundred twenty-two million, two hundred eleven thousand, two hundred one".