201223422420 has 24 divisors (see below), whose sum is σ = 563425582944. Its totient is φ = 53659579296.

The previous prime is 201223422403. The next prime is 201223422437. The reversal of 201223422420 is 24224322102.

It is an interprime number because it is at equal distance from previous prime (201223422403) and next prime (201223422437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676861794 + ... + 1676861913.

It is an arithmetic number, because the mean of its divisors is an integer number (23476065956).

Almost surely, 2^201223422420 is an apocalyptic number.

201223422420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201223422420 is an abundant number, since it is smaller than the sum of its proper divisors (362202160524).

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

201223422420 is a wasteful number, since it uses less digits than its factorization.

201223422420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353723719 (or 3353723717 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 201223422420 its reverse (24224322102), we get a palindrome (225447744522).

The spelling of 201223422420 in words is "two hundred one billion, two hundred twenty-three million, four hundred twenty-two thousand, four hundred twenty".