201201323022 has 192 divisors, whose sum is σ = 518530940928. Its totient is φ = 55194048000.

The previous prime is 201201323017. The next prime is 201201323027. The reversal of 201201323022 is 220323102102.

It is an interprime number because it is at equal distance from previous prime (201201323017) and next prime (201201323027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201201322986 and 201201323004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201323027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85945572 + ... + 85947912.

It is an arithmetic number, because the mean of its divisors is an integer number (2700681984).

Almost surely, 2^201201323022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201201323022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259265470464).

201201323022 is an abundant number, since it is smaller than the sum of its proper divisors (317329617906).

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

201201323022 is a wasteful number, since it uses less digits than its factorization.

201201323022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201201323022 its reverse (220323102102), we get a palindrome (421524425124).

The spelling of 201201323022 in words is "two hundred one billion, two hundred one million, three hundred twenty-three thousand, twenty-two".