100122210110221 has 4 divisors (see below), whose sum is σ = 107823918580252. Its totient is φ = 92420501640192.

The previous prime is 100122210110071. The next prime is 100122210110233. The reversal of 100122210110221 is 122011012221001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11042402106121 + 89079808004100 = 3323011^2 + 9438210^2 .

It is a cyclic number.

It is not a de Polignac number, because 100122210110221 - 2²³ = 100122201721613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122210110195 and 100122210110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122210117221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850854234996 + ... + 3850854235021.

It is an arithmetic number, because the mean of its divisors is an integer number (26955979645063).

Almost surely, 2^{100122210110221} is an apocalyptic number.

It is an amenable number.

100122210110221 is a deficient number, since it is larger than the sum of its proper divisors (7701708470031).

100122210110221 is an equidigital number, since it uses as much as digits as its factorization.

100122210110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701708470030.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100122210110221 its reverse (122011012221001), we get a palindrome (222133222331222).

The spelling of 100122210110221 in words is "one hundred trillion, one hundred twenty-two billion, two hundred ten million, one hundred ten thousand, two hundred twenty-one".