202212221211 has 144 divisors (see below), whose sum is σ = 395782163712. Its totient is φ = 96606432000.

The previous prime is 202212221207. The next prime is 202212221213. The reversal of 202212221211 is 112122212202.

It is a happy number.

202212221211 is a `hidden beast` number, since 20 + 2 + 212 + 221 + 211 = 666.

It is not a de Polignac number, because 202212221211 - 2² = 202212221207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202212221213) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33141061 + ... + 33147161.

It is an arithmetic number, because the mean of its divisors is an integer number (2748487248).

Almost surely, 2^202212221211 is an apocalyptic number.

202212221211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202212221211 is a deficient number, since it is larger than the sum of its proper divisors (193569942501).

202212221211 is a wasteful number, since it uses less digits than its factorization.

202212221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434 (or 6418 counting only the distinct ones).

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

Adding to 202212221211 its reverse (112122212202), we get a palindrome (314334433413).

Subtracting from 202212221211 its reverse (112122212202), we obtain a palindrome (90090009009).

The spelling of 202212221211 in words is "two hundred two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred eleven".