1243355554222 has 8 divisors (see below), whose sum is σ = 1871670461472. Its totient is φ = 619465400400.

The previous prime is 1243355554183. The next prime is 1243355554223. The reversal of 1243355554222 is 2224555533421.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243355554223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106187654 + ... + 1106188777.

It is an arithmetic number, because the mean of its divisors is an integer number (233958807684).

Almost surely, 2^{1243355554222} is an apocalyptic number.

1243355554222 is a deficient number, since it is larger than the sum of its proper divisors (628314907250).

1243355554222 is a wasteful number, since it uses less digits than its factorization.

1243355554222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212376714.

The product of its digits is 1440000, while the sum is 43.

The spelling of 1243355554222 in words is "one trillion, two hundred forty-three billion, three hundred fifty-five million, five hundred fifty-four thousand, two hundred twenty-two".