100220121011 has 4 divisors (see below), whose sum is σ = 100387434000. Its totient is φ = 100052808024.

The previous prime is 100220120951. The next prime is 100220121013. The reversal of 100220121011 is 110121022001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110121022001 = 269 ⋅409371829.

It is a cyclic number.

It is not a de Polignac number, because 100220121011 - 2¹⁴ = 100220104627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100220120983 and 100220121001.

It is not an unprimeable number, because it can be changed into a prime (100220121013) 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 3 ways as a sum of consecutive naturals, for example, 83655596 + ... + 83656793.

It is an arithmetic number, because the mean of its divisors is an integer number (25096858500).

Almost surely, 2^100220121011 is an apocalyptic number.

100220121011 is a deficient number, since it is larger than the sum of its proper divisors (167312989).

100220121011 is an equidigital number, since it uses as much as digits as its factorization.

100220121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167312988.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100220121011 its reverse (110121022001), we get a palindrome (210341143012).

The spelling of 100220121011 in words is "one hundred billion, two hundred twenty million, one hundred twenty-one thousand, eleven".