100505026021 has 8 divisors (see below), whose sum is σ = 100732187520. Its totient is φ = 100278108672.

The previous prime is 100505025991. The next prime is 100505026099. The reversal of 100505026021 is 120620505001.

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 100505026021 - 2¹⁹ = 100504501733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100505025983 and 100505026001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100505126021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776101 + ... + 896293.

It is an arithmetic number, because the mean of its divisors is an integer number (12591523440).

Almost surely, 2^100505026021 is an apocalyptic number.

It is an amenable number.

100505026021 is a deficient number, since it is larger than the sum of its proper divisors (227161499).

100505026021 is a wasteful number, since it uses less digits than its factorization.

100505026021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122075.

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 100505026021 in words is "one hundred billion, five hundred five million, twenty-six thousand, twenty-one".