110011021212121 has 8 divisors (see below), whose sum is σ = 112332021669864. Its totient is φ = 107712020759040.

The previous prime is 110011021212107. The next prime is 110011021212143. The reversal of 110011021212121 is 121212120110011.

It can be written as a sum of positive squares in 4 ways, for example, as 31893070286025 + 78117950926096 = 5647395^2 + 8838436^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 110011021212121 - 2⁵ = 110011021212089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110011021212095 and 110011021212104.

It is not an unprimeable number, because it can be changed into a prime (110011021212221) 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, 5499991060 + ... + 5500011061.

It is an arithmetic number, because the mean of its divisors is an integer number (14041502708733).

Almost surely, 2^{110011021212121} is an apocalyptic number.

It is an amenable number.

110011021212121 is a deficient number, since it is larger than the sum of its proper divisors (2321000457743).

110011021212121 is a wasteful number, since it uses less digits than its factorization.

110011021212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000002331.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 110011021212121 its reverse (121212120110011), we get a palindrome (231223141322132).

The spelling of 110011021212121 in words is "one hundred ten trillion, eleven billion, twenty-one million, two hundred twelve thousand, one hundred twenty-one".