1100021121123 has 8 divisors (see below), whose sum is σ = 1474139980368. Its totient is φ = 729624837984.

The previous prime is 1100021121103. The next prime is 1100021121179. The reversal of 1100021121123 is 3211211200011.

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

It is not a de Polignac number, because 1100021121123 - 2⁸ = 1100021120867 is a prime.

It is a super-2 number, since 2×1100021121123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100021121103) 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, 930643336 + ... + 930644517.

It is an arithmetic number, because the mean of its divisors is an integer number (184267497546).

Almost surely, 2^{1100021121123} is an apocalyptic number.

1100021121123 is a deficient number, since it is larger than the sum of its proper divisors (374118859245).

1100021121123 is a wasteful number, since it uses less digits than its factorization.

1100021121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861288053.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1100021121123 its reverse (3211211200011), we get a palindrome (4311232321134).

The spelling of 1100021121123 in words is "one trillion, one hundred billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-three".