201122111022 has 96 divisors (see below), whose sum is σ = 482832070560. Its totient is φ = 55652244480.

The previous prime is 201122111011. The next prime is 201122111027. The reversal of 201122111022 is 220111221102.

201122111022 is digitally balanced in base 3, 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 = 201122110992 and 201122111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122111027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1590504 + ... + 1712292.

It is an arithmetic number, because the mean of its divisors is an integer number (5029500735).

Almost surely, 2^201122111022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201122111022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241416035280).

201122111022 is an abundant number, since it is smaller than the sum of its proper divisors (281709959538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201122111022 is a wasteful number, since it uses less digits than its factorization.

201122111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121986 (or 121979 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201122111022 its reverse (220111221102), we get a palindrome (421233332124).

The spelling of 201122111022 in words is "two hundred one billion, one hundred twenty-two million, one hundred eleven thousand, twenty-two".