202220212012211 has 4 divisors (see below), whose sum is σ = 202220282172000. Its totient is φ = 202220141852424.

The previous prime is 202220212012157. The next prime is 202220212012229. The reversal of 202220212012211 is 112210212022202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202220212012211 is a prime.

It is a super-2 number, since 2×202220212012211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220212012261) 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 3 ways as a sum of consecutive naturals, for example, 30562571 + ... + 36585668.

It is an arithmetic number, because the mean of its divisors is an integer number (50555070543000).

Almost surely, 2^{202220212012211} is an apocalyptic number.

202220212012211 is a deficient number, since it is larger than the sum of its proper divisors (70159789).

202220212012211 is an equidigital number, since it uses as much as digits as its factorization.

202220212012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70159788.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202220212012211 its reverse (112210212022202), we get a palindrome (314430424034413).

Subtracting from 202220212012211 its reverse (112210212022202), we obtain a palindrome (90009999990009).

The spelling of 202220212012211 in words is "two hundred two trillion, two hundred twenty billion, two hundred twelve million, twelve thousand, two hundred eleven".