1302210002221 has 4 divisors (see below), whose sum is σ = 1306144171744. Its totient is φ = 1298275832700.

The previous prime is 1302210002207. The next prime is 1302210002243. The reversal of 1302210002221 is 1222000122031.

It is a happy number.

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 1302210002221 - 2¹⁵ = 1302209969453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302210002195 and 1302210002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302210002201) 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 3 ways as a sum of consecutive naturals, for example, 1967084265 + ... + 1967084926.

It is an arithmetic number, because the mean of its divisors is an integer number (326536042936).

Almost surely, 2^{1302210002221} is an apocalyptic number.

It is an amenable number.

1302210002221 is a deficient number, since it is larger than the sum of its proper divisors (3934169523).

1302210002221 is an equidigital number, since it uses as much as digits as its factorization.

1302210002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934169522.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1302210002221 its reverse (1222000122031), we get a palindrome (2524210124252).

The spelling of 1302210002221 in words is "one trillion, three hundred two billion, two hundred ten million, two thousand, two hundred twenty-one".