110101212121 has 8 divisors (see below), whose sum is σ = 111178084160. Its totient is φ = 109024492752.

The previous prime is 110101211971. The next prime is 110101212131. The reversal of 110101212121 is 121212101011.

It is a happy number.

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 110101212121 - 2³³ = 101511277529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110101212131) 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 7 ways as a sum of consecutive naturals, for example, 1879015 + ... + 1936723.

It is an arithmetic number, because the mean of its divisors is an integer number (13897260520).

Almost surely, 2^110101212121 is an apocalyptic number.

It is an amenable number.

110101212121 is a deficient number, since it is larger than the sum of its proper divisors (1076872039).

110101212121 is a wasteful number, since it uses less digits than its factorization.

110101212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76335.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 110101212121 its reverse (121212101011), we get a palindrome (231313313132).

The spelling of 110101212121 in words is "one hundred ten billion, one hundred one million, two hundred twelve thousand, one hundred twenty-one".