101110112021 has 4 divisors (see below), whose sum is σ = 105506203872. Its totient is φ = 96714020172.

The previous prime is 101110112003. The next prime is 101110112029. The reversal of 101110112021 is 120211011101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120211011101 = 3181 ⋅37790321.

It is a cyclic number.

It is not a de Polignac number, because 101110112021 - 2⁶ = 101110111957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101110111993 and 101110112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101110112029) 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, 2198045891 + ... + 2198045936.

It is an arithmetic number, because the mean of its divisors is an integer number (26376550968).

Almost surely, 2^101110112021 is an apocalyptic number.

It is an amenable number.

101110112021 is a deficient number, since it is larger than the sum of its proper divisors (4396091851).

101110112021 is an equidigital number, since it uses as much as digits as its factorization.

101110112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396091850.

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

Adding to 101110112021 its reverse (120211011101), we get a palindrome (221321123122).

It can be divided in two parts, 1011101 and 12021, that multiplied together give a palindrome (12154445121).

The spelling of 101110112021 in words is "one hundred one billion, one hundred ten million, one hundred twelve thousand, twenty-one".