101223100021 has 8 divisors (see below), whose sum is σ = 104501664000. Its totient is φ = 97945367520.

The previous prime is 101223100009. The next prime is 101223100031. The reversal of 101223100021 is 120001322101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101223100021 - 2⁷ = 101223099893 is a prime.

It is a super-2 number, since 2×101223100021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101223099974 and 101223100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223100031) 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 7 ways as a sum of consecutive naturals, for example, 44430 + ... + 452128.

It is an arithmetic number, because the mean of its divisors is an integer number (13062708000).

Almost surely, 2^101223100021 is an apocalyptic number.

It is an amenable number.

101223100021 is a deficient number, since it is larger than the sum of its proper divisors (3278563979).

101223100021 is an equidigital number, since it uses as much as digits as its factorization.

101223100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415739.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101223100021 its reverse (120001322101), we get a palindrome (221224422122).

The spelling of 101223100021 in words is "one hundred one billion, two hundred twenty-three million, one hundred thousand, twenty-one".