21320313331222 has 8 divisors (see below), whose sum is σ = 33083244824400. Its totient is φ = 10292565056424.

The previous prime is 21320313331211. The next prime is 21320313331237. The reversal of 21320313331222 is 22213331302312.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183795804522 + ... + 183795804637.

It is an arithmetic number, because the mean of its divisors is an integer number (4135405603050).

Almost surely, 2^{21320313331222} is an apocalyptic number.

21320313331222 is a deficient number, since it is larger than the sum of its proper divisors (11762931493178).

21320313331222 is a wasteful number, since it uses less digits than its factorization.

21320313331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367591609190.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21320313331222 its reverse (22213331302312), we get a palindrome (43533644633534).

The spelling of 21320313331222 in words is "twenty-one trillion, three hundred twenty billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred twenty-two".