321221013022 has 48 divisors (see below), whose sum is σ = 623084579712. Its totient is φ = 122977189440.

The previous prime is 321221013011. The next prime is 321221013073. The reversal of 321221013022 is 220310122123.

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 23 ways as a sum of consecutive naturals, for example, 4027213 + ... + 4106200.

It is an arithmetic number, because the mean of its divisors is an integer number (12980928744).

Almost surely, 2^321221013022 is an apocalyptic number.

321221013022 is a deficient number, since it is larger than the sum of its proper divisors (301863566690).

321221013022 is a wasteful number, since it uses less digits than its factorization.

321221013022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133473 (or 8133466 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 321221013022 its reverse (220310122123), we get a palindrome (541531135145).

The spelling of 321221013022 in words is "three hundred twenty-one billion, two hundred twenty-one million, thirteen thousand, twenty-two".