100220221021 has 8 divisors (see below), whose sum is σ = 101147578400. Its totient is φ = 99293007600.

The previous prime is 100220221019. The next prime is 100220221033. The reversal of 100220221021 is 120122022001.

It is a happy number.

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 100220221021 - 2¹ = 100220221019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100220220992 and 100220221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220221081) 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, 1787350 + ... + 1842568.

It is an arithmetic number, because the mean of its divisors is an integer number (12643447300).

Almost surely, 2^100220221021 is an apocalyptic number.

It is an amenable number.

100220221021 is a deficient number, since it is larger than the sum of its proper divisors (927357379).

100220221021 is a wasteful number, since it uses less digits than its factorization.

100220221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71979.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100220221021 its reverse (120122022001), we get a palindrome (220342243022).

The spelling of 100220221021 in words is "one hundred billion, two hundred twenty million, two hundred twenty-one thousand, twenty-one".