110212211021 has 4 divisors (see below), whose sum is σ = 120231502944. Its totient is φ = 100192919100.

The previous prime is 110212211009. The next prime is 110212211023. The reversal of 110212211021 is 120112212011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110212211021 - 2¹⁰ = 110212209997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110212210987 and 110212211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212211023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009645945 + ... + 5009645966.

It is an arithmetic number, because the mean of its divisors is an integer number (30057875736).

Almost surely, 2^110212211021 is an apocalyptic number.

110212211021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110212211021 is a deficient number, since it is larger than the sum of its proper divisors (10019291923).

110212211021 is a wasteful number, since it uses less digits than its factorization.

110212211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019291922.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110212211021 its reverse (120112212011), we get a palindrome (230324423032).

The spelling of 110212211021 in words is "one hundred ten billion, two hundred twelve million, two hundred eleven thousand, twenty-one".