202112122211 has 8 divisors (see below), whose sum is σ = 202860875280. Its totient is φ = 201364365312.

The previous prime is 202112122189. The next prime is 202112122217. The reversal of 202112122211 is 112221211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202112122211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202112122211.

It is not an unprimeable number, because it can be changed into a prime (202112122217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158720 + ... + 655298.

It is an arithmetic number, because the mean of its divisors is an integer number (25357609410).

Almost surely, 2^202112122211 is an apocalyptic number.

202112122211 is a deficient number, since it is larger than the sum of its proper divisors (748753069).

202112122211 is a wasteful number, since it uses less digits than its factorization.

202112122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498085.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202112122211 its reverse (112221211202), we get a palindrome (314333333413).

The spelling of 202112122211 in words is "two hundred two billion, one hundred twelve million, one hundred twenty-two thousand, two hundred eleven".