1110110212121 has 8 divisors (see below), whose sum is σ = 1175460000840. Its totient is φ = 1044765888768.

The previous prime is 1110110212097. The next prime is 1110110212129. The reversal of 1110110212121 is 1212120110111.

It can be written as a sum of positive squares in 4 ways, for example, as 264931531225 + 845178680896 = 514715^2 + 919336^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110110212121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110110212096 and 1110110212105.

It is not an unprimeable number, because it can be changed into a prime (1110110212129) 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, 944426 + ... + 1764131.

It is an arithmetic number, because the mean of its divisors is an integer number (146932500105).

Almost surely, 2^{1110110212121} is an apocalyptic number.

It is an amenable number.

1110110212121 is a deficient number, since it is larger than the sum of its proper divisors (65349788719).

1110110212121 is a wasteful number, since it uses less digits than its factorization.

1110110212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732683.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1110110212121 its reverse (1212120110111), we get a palindrome (2322230322232).

It can be divided in two parts, 1110110 and 212121, that added together give a palindrome (1322231).

The spelling of 1110110212121 in words is "one trillion, one hundred ten billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-one".