100110220021 has 32 divisors (see below), whose sum is σ = 117185395968. Its totient is φ = 83756851200.

The previous prime is 100110220019. The next prime is 100110220061. The reversal of 100110220021 is 120022011001.

It is a cyclic number.

It is not a de Polignac number, because 100110220021 - 2¹ = 100110220019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100110220061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24710446 + ... + 24714496.

It is an arithmetic number, because the mean of its divisors is an integer number (3662043624).

Almost surely, 2^100110220021 is an apocalyptic number.

It is an amenable number.

100110220021 is a deficient number, since it is larger than the sum of its proper divisors (17075175947).

100110220021 is a wasteful number, since it uses less digits than its factorization.

100110220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100110220021 its reverse (120022011001), we get a palindrome (220132231022).

The spelling of 100110220021 in words is "one hundred billion, one hundred ten million, two hundred twenty thousand, twenty-one".