1222405312143 has 8 divisors (see below), whose sum is σ = 1630879230256. Its totient is φ = 814434134400.

The previous prime is 1222405312111. The next prime is 1222405312157. The reversal of 1222405312143 is 3412135042221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222405312143 - 2⁵ = 1222405312111 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 1222405312143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222405312103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125679418 + ... + 125689143.

It is an arithmetic number, because the mean of its divisors is an integer number (203859903782).

Almost surely, 2^{1222405312143} is an apocalyptic number.

1222405312143 is a deficient number, since it is larger than the sum of its proper divisors (408473918113).

1222405312143 is a wasteful number, since it uses less digits than its factorization.

1222405312143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251370185.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 1222405312143 in words is "one trillion, two hundred twenty-two billion, four hundred five million, three hundred twelve thousand, one hundred forty-three".