201243022 has 8 divisors (see below), whose sum is σ = 317752200. Its totient is φ = 95325624.

The previous prime is 201243011. The next prime is 201243043. The reversal of 201243022 is 220342102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201242987 and 201243005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2647897 + ... + 2647972.

It is an arithmetic number, because the mean of its divisors is an integer number (39719025).

Almost surely, 2^201243022 is an apocalyptic number.

201243022 is a deficient number, since it is larger than the sum of its proper divisors (116509178).

201243022 is a wasteful number, since it uses less digits than its factorization.

201243022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295890.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 201243022 is about 14186.0150147954. The cubic root of 201243022 is about 586.0125857819.

Adding to 201243022 its reverse (220342102), we get a palindrome (421585124).

The spelling of 201243022 in words is "two hundred one million, two hundred forty-three thousand, twenty-two".