201220211122 has 16 divisors (see below), whose sum is σ = 345155653440. Its totient is φ = 86185553328.

The previous prime is 201220211117. The next prime is 201220211131. The reversal of 201220211122 is 221112022102.

It is a happy number.

201220211122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201220211096 and 201220211105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4282468 + ... + 4329199.

It is an arithmetic number, because the mean of its divisors is an integer number (21572228340).

Almost surely, 2^201220211122 is an apocalyptic number.

201220211122 is a deficient number, since it is larger than the sum of its proper divisors (143935442318).

201220211122 is a wasteful number, since it uses less digits than its factorization.

201220211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8613345.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201220211122 its reverse (221112022102), we get a palindrome (422332233224).

The spelling of 201220211122 in words is "two hundred one billion, two hundred twenty million, two hundred eleven thousand, one hundred twenty-two".