101110010021 has 4 divisors (see below), whose sum is σ = 101134729344. Its totient is φ = 101085290700.

The previous prime is 101110009939. The next prime is 101110010041. The reversal of 101110010021 is 120010011101.

It is a happy number.

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 101110010021 - 2¹⁰ = 101110008997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101110009990 and 101110010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101110010041) 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, 12353525 + ... + 12361706.

It is an arithmetic number, because the mean of its divisors is an integer number (25283682336).

Almost surely, 2^101110010021 is an apocalyptic number.

It is an amenable number.

101110010021 is a deficient number, since it is larger than the sum of its proper divisors (24719323).

101110010021 is an equidigital number, since it uses as much as digits as its factorization.

101110010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24719322.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101110010021 its reverse (120010011101), we get a palindrome (221120021122).

The spelling of 101110010021 in words is "one hundred one billion, one hundred ten million, ten thousand, twenty-one".