321422220213 has 4 divisors (see below), whose sum is σ = 428562960288. Its totient is φ = 214281480140.

The previous prime is 321422220209. The next prime is 321422220239. The reversal of 321422220213 is 312022224123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321422220213 - 2² = 321422220209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321422220283) 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, 53570370033 + ... + 53570370038.

It is an arithmetic number, because the mean of its divisors is an integer number (107140740072).

Almost surely, 2^321422220213 is an apocalyptic number.

It is an amenable number.

321422220213 is a deficient number, since it is larger than the sum of its proper divisors (107140740075).

321422220213 is a wasteful number, since it uses less digits than its factorization.

321422220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107140740074.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 321422220213 its reverse (312022224123), we get a palindrome (633444444336).

The spelling of 321422220213 in words is "three hundred twenty-one billion, four hundred twenty-two million, two hundred twenty thousand, two hundred thirteen".