1242223114321 has 6 divisors (see below), whose sum is σ = 1445035051410. Its totient is φ = 1064762669376.

The previous prime is 1242223114261. The next prime is 1242223114361. The reversal of 1242223114321 is 1234113222421.

It can be written as a sum of positive squares in only one way, i.e., 622893463696 + 619329650625 = 789236^2 + 786975^2 .

It is not a de Polignac number, because 1242223114321 - 2²⁷ = 1242088896593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242223114321.

It is not an unprimeable number, because it can be changed into a prime (1242223114361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12675746016 + ... + 12675746113.

It is an arithmetic number, because the mean of its divisors is an integer number (240839175235).

Almost surely, 2^{1242223114321} is an apocalyptic number.

It is an amenable number.

1242223114321 is a deficient number, since it is larger than the sum of its proper divisors (202811937089).

1242223114321 is an equidigital number, since it uses as much as digits as its factorization.

1242223114321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25351492143 (or 25351492136 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 1242223114321 its reverse (1234113222421), we get a palindrome (2476336336742).

The spelling of 1242223114321 in words is "one trillion, two hundred forty-two billion, two hundred twenty-three million, one hundred fourteen thousand, three hundred twenty-one".