321222212201002 has 16 divisors (see below), whose sum is σ = 574608677726592. Its totient is φ = 131681155312080.

The previous prime is 321222212200997. The next prime is 321222212201003. The reversal of 321222212201002 is 200102212222123.

It is a happy number.

It is a super-2 number, since 2×321222212201002² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321222212201003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498792254649 + ... + 498792255292.

It is an arithmetic number, because the mean of its divisors is an integer number (35913042357912).

Almost surely, 2^{321222212201002} is an apocalyptic number.

321222212201002 is a deficient number, since it is larger than the sum of its proper divisors (253386465525590).

321222212201002 is a wasteful number, since it uses less digits than its factorization.

321222212201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997584509973.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 321222212201002 its reverse (200102212222123), we get a palindrome (521324424423125).

The spelling of 321222212201002 in words is "three hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred one thousand, two".