1100210121021 has 32 divisors (see below), whose sum is σ = 1694803651200. Its totient is φ = 627436615680.

The previous prime is 1100210121007. The next prime is 1100210121067. The reversal of 1100210121021 is 1201210120011.

It is not a de Polignac number, because 1100210121021 - 2¹⁵ = 1100210088253 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1100210120988 and 1100210121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100210121121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2445615 + ... + 2860323.

It is an arithmetic number, because the mean of its divisors is an integer number (52962614100).

Almost surely, 2^{1100210121021} is an apocalyptic number.

1100210121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100210121021 is a deficient number, since it is larger than the sum of its proper divisors (594593530179).

1100210121021 is a wasteful number, since it uses less digits than its factorization.

1100210121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419469.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1100210121021 its reverse (1201210120011), we get a palindrome (2301420241032).

The spelling of 1100210121021 in words is "one trillion, one hundred billion, two hundred ten million, one hundred twenty-one thousand, twenty-one".