322020001221 has 16 divisors (see below), whose sum is σ = 454810342464. Its totient is φ = 201965601024.

The previous prime is 322020001201. The next prime is 322020001271. The reversal of 322020001221 is 122100020223.

It is a happy number.

It is not a de Polignac number, because 322020001221 - 2¹⁸ = 322019739077 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 322020001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322020001201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1225450 + ... + 1464843.

It is an arithmetic number, because the mean of its divisors is an integer number (28425646404).

Almost surely, 2^322020001221 is an apocalyptic number.

It is an amenable number.

322020001221 is a deficient number, since it is larger than the sum of its proper divisors (132790341243).

322020001221 is a wasteful number, since it uses less digits than its factorization.

322020001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692660.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 322020001221 its reverse (122100020223), we get a palindrome (444120021444).

The spelling of 322020001221 in words is "three hundred twenty-two billion, twenty million, one thousand, two hundred twenty-one".