201322401 has 16 divisors (see below), whose sum is σ = 316674048. Its totient is φ = 111330000.

The previous prime is 201322397. The next prime is 201322447. The reversal of 201322401 is 104223102.

It is not a de Polignac number, because 201322401 - 2² = 201322397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201322301) 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, 153975 + ... + 155276.

It is an arithmetic number, because the mean of its divisors is an integer number (19792128).

Almost surely, 2^201322401 is an apocalyptic number.

201322401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201322401 is a deficient number, since it is larger than the sum of its proper divisors (115351647).

201322401 is a wasteful number, since it uses less digits than its factorization.

201322401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309292.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 201322401 is about 14188.8125295953. The cubic root of 201322401 is about 586.0896252702.

Adding to 201322401 its reverse (104223102), we get a palindrome (305545503).

The spelling of 201322401 in words is "two hundred one million, three hundred twenty-two thousand, four hundred one".