1101554221123 has 32 divisors (see below), whose sum is σ = 1159120371200. Its totient is φ = 1045542297600.

The previous prime is 1101554221121. The next prime is 1101554221129. The reversal of 1101554221123 is 3211224551011.

It is a cyclic number.

It is not a de Polignac number, because 1101554221123 - 2¹ = 1101554221121 is a prime.

It is a super-2 number, since 2×1101554221123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101554221091 and 1101554221100.

It is not an unprimeable number, because it can be changed into a prime (1101554221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615736513 + ... + 615738301.

It is an arithmetic number, because the mean of its divisors is an integer number (36222511600).

Almost surely, 2^{1101554221123} is an apocalyptic number.

1101554221123 is a deficient number, since it is larger than the sum of its proper divisors (57566150077).

1101554221123 is a wasteful number, since it uses less digits than its factorization.

1101554221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 1101554221123 its reverse (3211224551011), we get a palindrome (4312778772134).

The spelling of 1101554221123 in words is "one trillion, one hundred one billion, five hundred fifty-four million, two hundred twenty-one thousand, one hundred twenty-three".