1311221222302 has 16 divisors (see below), whose sum is σ = 2023450595712. Its totient is φ = 636874948480.

The previous prime is 1311221222293. The next prime is 1311221222341. The reversal of 1311221222302 is 2032221221131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34295278 + ... + 34333489.

It is an arithmetic number, because the mean of its divisors is an integer number (126465662232).

Almost surely, 2^{1311221222302} is an apocalyptic number.

1311221222302 is a deficient number, since it is larger than the sum of its proper divisors (712229373410).

1311221222302 is a wasteful number, since it uses less digits than its factorization.

1311221222302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68629043.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1311221222302 its reverse (2032221221131), we get a palindrome (3343442443433).

The spelling of 1311221222302 in words is "one trillion, three hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, three hundred two".