211122020220209 has 16 divisors (see below), whose sum is σ = 249157414302720. Its totient is φ = 175059705876480.

The previous prime is 211122020220187. The next prime is 211122020220211. The reversal of 211122020220209 is 902022020221112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211122020220209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211122020220299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178716944 + ... + 179894385.

It is an arithmetic number, because the mean of its divisors is an integer number (15572338393920).

Almost surely, 2^{211122020220209} is an apocalyptic number.

It is an amenable number.

211122020220209 is a deficient number, since it is larger than the sum of its proper divisors (38035394082511).

211122020220209 is a wasteful number, since it uses less digits than its factorization.

211122020220209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358614080.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 211122020220209 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty million, two hundred twenty thousand, two hundred nine".