110001011120021 has 4 divisors (see below), whose sum is σ = 125715441280032. Its totient is φ = 94286580960012.

The previous prime is 110001011120003. The next prime is 110001011120057. The reversal of 110001011120021 is 120021110100011.

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 not a de Polignac number, because 110001011120021 - 2²² = 110001006925717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110001011119984 and 110001011120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001011120521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7857215079995 + ... + 7857215080008.

It is an arithmetic number, because the mean of its divisors is an integer number (31428860320008).

Almost surely, 2^{110001011120021} is an apocalyptic number.

It is an amenable number.

110001011120021 is a deficient number, since it is larger than the sum of its proper divisors (15714430160011).

110001011120021 is an equidigital number, since it uses as much as digits as its factorization.

110001011120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714430160010.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 110001011120021 its reverse (120021110100011), we get a palindrome (230022121220032).

The spelling of 110001011120021 in words is "one hundred ten trillion, one billion, eleven million, one hundred twenty thousand, twenty-one".