1243421243222 has 16 divisors (see below), whose sum is σ = 1923218503920. Its totient is φ = 602631068832.

The previous prime is 1243421243189. The next prime is 1243421243237. The reversal of 1243421243222 is 2223421243421.

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, 70656197 + ... + 70673792.

It is an arithmetic number, because the mean of its divisors is an integer number (120201156495).

Almost surely, 2^{1243421243222} is an apocalyptic number.

1243421243222 is a deficient number, since it is larger than the sum of its proper divisors (679797260698).

1243421243222 is a wasteful number, since it uses less digits than its factorization.

1243421243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141330127.

The product of its digits is 36864, while the sum is 32.

Adding to 1243421243222 its reverse (2223421243421), we get a palindrome (3466842486643).

The spelling of 1243421243222 in words is "one trillion, two hundred forty-three billion, four hundred twenty-one million, two hundred forty-three thousand, two hundred twenty-two".