202020212220202 has 16 divisors (see below), whose sum is σ = 321551630398152. Its totient is φ = 94862113169920.

The previous prime is 202020212220149. The next prime is 202020212220209. The reversal of 202020212220202 is 202022212020202.

It can be written as a sum of positive squares in 4 ways, for example, as 201487208555161 + 533003665041 = 14194619^2 + 730071^2 .

It is a super-2 number, since 2×202020212220202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202020212220202.

It is not an unprimeable number, because it can be changed into a prime (202020212220209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6444421363 + ... + 6444452710.

Almost surely, 2^{202020212220202} is an apocalyptic number.

202020212220202 is a deficient number, since it is larger than the sum of its proper divisors (119531418177950).

202020212220202 is a wasteful number, since it uses less digits than its factorization.

202020212220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888874553.

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

Adding to 202020212220202 its reverse (202022212020202), we get a palindrome (404042424240404).

The spelling of 202020212220202 in words is "two hundred two trillion, twenty billion, two hundred twelve million, two hundred twenty thousand, two hundred two".