1222231220313 has 16 divisors (see below), whose sum is σ = 1662035379840. Its totient is φ = 798654415104.

The previous prime is 1222231220279. The next prime is 1222231220341. The reversal of 1222231220313 is 3130221322221.

It is not a de Polignac number, because 1222231220313 - 2²⁵ = 1222197665881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222231220713) 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, 3648781 + ... + 3969642.

It is an arithmetic number, because the mean of its divisors is an integer number (103877211240).

Almost surely, 2^{1222231220313} is an apocalyptic number.

It is an amenable number.

1222231220313 is a deficient number, since it is larger than the sum of its proper divisors (439804159527).

1222231220313 is a wasteful number, since it uses less digits than its factorization.

1222231220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619488.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1222231220313 its reverse (3130221322221), we get a palindrome (4352452542534).

The spelling of 1222231220313 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-one million, two hundred twenty thousand, three hundred thirteen".