202220021211 has 16 divisors (see below), whose sum is σ = 290402999040. Its totient is φ = 124427751840.

The previous prime is 202220021207. The next prime is 202220021243. The reversal of 202220021211 is 112120022202.

202220021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202220021211 - 2² = 202220021207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202220021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5106 + ... + 635976.

It is an arithmetic number, because the mean of its divisors is an integer number (18150187440).

Almost surely, 2^202220021211 is an apocalyptic number.

202220021211 is a deficient number, since it is larger than the sum of its proper divisors (88182977829).

202220021211 is a wasteful number, since it uses less digits than its factorization.

202220021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639106.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202220021211 its reverse (112120022202), we get a palindrome (314340043413).

Subtracting from 202220021211 its reverse (112120022202), we obtain a palindrome (90099999009).

The spelling of 202220021211 in words is "two hundred two billion, two hundred twenty million, twenty-one thousand, two hundred eleven".