11243402221255 has 8 divisors (see below), whose sum is σ = 14202192279600. Its totient is φ = 8521315367616.

The previous prime is 11243402221241. The next prime is 11243402221273. The reversal of 11243402221255 is 55212220434211.

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

It is a cyclic number.

It is not a de Polignac number, because 11243402221255 - 2⁷ = 11243402221127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11243402221255.

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, 59175801070 + ... + 59175801259.

It is an arithmetic number, because the mean of its divisors is an integer number (1775274034950).

Almost surely, 2^{11243402221255} is an apocalyptic number.

11243402221255 is a deficient number, since it is larger than the sum of its proper divisors (2958790058345).

11243402221255 is a wasteful number, since it uses less digits than its factorization.

11243402221255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118351602353.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 11243402221255 its reverse (55212220434211), we get a palindrome (66455622655466).

The spelling of 11243402221255 in words is "eleven trillion, two hundred forty-three billion, four hundred two million, two hundred twenty-one thousand, two hundred fifty-five".