110101012011021 has 4 divisors (see below), whose sum is σ = 146801349348032. Its totient is φ = 73400674674012.

The previous prime is 110101012010963. The next prime is 110101012011047. The reversal of 110101012011021 is 120110210101011.

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 110101012011021 - 2¹⁰ = 110101012009997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110101012010988 and 110101012011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101012011091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18350168668501 + ... + 18350168668506.

It is an arithmetic number, because the mean of its divisors is an integer number (36700337337008).

Almost surely, 2^{110101012011021} is an apocalyptic number.

It is an amenable number.

110101012011021 is a deficient number, since it is larger than the sum of its proper divisors (36700337337011).

110101012011021 is an equidigital number, since it uses as much as digits as its factorization.

110101012011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36700337337010.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 110101012011021 its reverse (120110210101011), we get a palindrome (230211222112032).

The spelling of 110101012011021 in words is "one hundred ten trillion, one hundred one billion, twelve million, eleven thousand, twenty-one".