202112211220211 has 16 divisors (see below), whose sum is σ = 213893397273600. Its totient is φ = 190587926937408.

The previous prime is 202112211220201. The next prime is 202112211220253. The reversal of 202112211220211 is 112022112211202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202112211220211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202112211220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83198666 + ... + 85593471.

It is an arithmetic number, because the mean of its divisors is an integer number (13368337329600).

Almost surely, 2^{202112211220211} is an apocalyptic number.

202112211220211 is a deficient number, since it is larger than the sum of its proper divisors (11781186053389).

202112211220211 is a wasteful number, since it uses less digits than its factorization.

202112211220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168792898.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202112211220211 its reverse (112022112211202), we get a palindrome (314134323431413).

Subtracting from 202112211220211 its reverse (112022112211202), we obtain a palindrome (90090099009009).

The spelling of 202112211220211 in words is "two hundred two trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty thousand, two hundred eleven".