11554211220223 has 8 divisors (see below), whose sum is σ = 13222827580448. Its totient is φ = 9890098549344.

The previous prime is 11554211220221. The next prime is 11554211220259. The reversal of 11554211220223 is 32202211245511.

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 11554211220223 - 2¹ = 11554211220221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554211220221) 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, 1125916836 + ... + 1125927097.

It is an arithmetic number, because the mean of its divisors is an integer number (1652853447556).

Almost surely, 2^{11554211220223} is an apocalyptic number.

11554211220223 is a deficient number, since it is larger than the sum of its proper divisors (1668616360225).

11554211220223 is an equidigital number, since it uses as much as digits as its factorization.

11554211220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251844673.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 11554211220223 its reverse (32202211245511), we get a palindrome (43756422465734).

The spelling of 11554211220223 in words is "eleven trillion, five hundred fifty-four billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-three".