11110021221123 has 32 divisors (see below), whose sum is σ = 17956056049920. Its totient is φ = 6733171370880.

The previous prime is 11110021221119. The next prime is 11110021221191. The reversal of 11110021221123 is 32112212001111.

It is a happy number.

It is not a de Polignac number, because 11110021221123 - 2² = 11110021221119 is a prime.

It is a super-2 number, since 2×11110021221123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11110021221096 and 11110021221105.

It is not an unprimeable number, because it can be changed into a prime (11110021221023) 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 31 ways as a sum of consecutive naturals, for example, 11467036 + ... + 12398102.

It is an arithmetic number, because the mean of its divisors is an integer number (561126751560).

Almost surely, 2^{11110021221123} is an apocalyptic number.

11110021221123 is a deficient number, since it is larger than the sum of its proper divisors (6846034828797).

11110021221123 is a wasteful number, since it uses less digits than its factorization.

11110021221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971264 (or 971258 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11110021221123 its reverse (32112212001111), we get a palindrome (43222233222234).

The spelling of 11110021221123 in words is "eleven trillion, one hundred ten billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-three".