201231422 has 8 divisors (see below), whose sum is σ = 344968176. Its totient is φ = 86242032.

The previous prime is 201231391. The next prime is 201231427. The reversal of 201231422 is 224132102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201231422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201231427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186823 + ... + 7186850.

It is an arithmetic number, because the mean of its divisors is an integer number (43121022).

Almost surely, 2^201231422 is an apocalyptic number.

201231422 is a deficient number, since it is larger than the sum of its proper divisors (143736754).

201231422 is a wasteful number, since it uses less digits than its factorization.

201231422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14373682.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201231422 is about 14185.6061555367. The cubic root of 201231422 is about 586.0013259686.

Adding to 201231422 its reverse (224132102), we get a palindrome (425363524).

The spelling of 201231422 in words is "two hundred one million, two hundred thirty-one thousand, four hundred twenty-two".