1302221322002 has 4 divisors (see below), whose sum is σ = 1953331983006. Its totient is φ = 651110661000.

The previous prime is 1302221322001. The next prime is 1302221322047. The reversal of 1302221322002 is 2002231222031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 766747160881 + 535474161121 = 875641^2 + 731761^2 .

It is not an unprimeable number, because it can be changed into a prime (1302221322001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325555330499 + ... + 325555330502.

Almost surely, 2^{1302221322002} is an apocalyptic number.

1302221322002 is a deficient number, since it is larger than the sum of its proper divisors (651110661004).

1302221322002 is an equidigital number, since it uses as much as digits as its factorization.

1302221322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651110661003.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1302221322002 its reverse (2002231222031), we get a palindrome (3304452544033).

The spelling of 1302221322002 in words is "one trillion, three hundred two billion, two hundred twenty-one million, three hundred twenty-two thousand, two".