20202211212201 has 24 divisors (see below), whose sum is σ = 29377332995400. Its totient is φ = 13377515717376.

The previous prime is 20202211212173. The next prime is 20202211212223. The reversal of 20202211212201 is 10221211220202.

It is a happy number.

20202211212201 is a `hidden beast` number, since 20 + 20 + 2 + 211 + 212 + 201 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19789736976 + 20182421475225 = 140676^2 + 4492485^2 .

It is not a de Polignac number, because 20202211212201 - 2¹⁰ = 20202211211177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20202211212241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111208221 + ... + 111389733.

It is an arithmetic number, because the mean of its divisors is an integer number (1224055541475).

Almost surely, 2^{20202211212201} is an apocalyptic number.

It is an amenable number.

20202211212201 is a deficient number, since it is larger than the sum of its proper divisors (9175121783199).

20202211212201 is a wasteful number, since it uses less digits than its factorization.

20202211212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264665 (or 264662 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20202211212201 its reverse (10221211220202), we get a palindrome (30423422432403).

The spelling of 20202211212201 in words is "twenty trillion, two hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred one".