100220121000101 has 2 divisors, whose sum is σ = 100220121000102. Its totient is φ = 100220121000100.

The previous prime is 100220121000073. The next prime is 100220121000113. The reversal of 100220121000101 is 101000121022001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89595122320900 + 10624998679201 = 9465470^2 + 3259601^2 .

It is an emirp because it is prime and its reverse (101000121022001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100220121000101 - 2²² = 100220116805797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220121000121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110060500050 + 50110060500051.

It is an arithmetic number, because the mean of its divisors is an integer number (50110060500051).

Almost surely, 2^{100220121000101} is an apocalyptic number.

It is an amenable number.

100220121000101 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220121000101 is an equidigital number, since it uses as much as digits as its factorization.

100220121000101 is an odious number, because the sum of its binary digits is odd.

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

Adding to 100220121000101 its reverse (101000121022001), we get a palindrome (201220242022102).

The spelling of 100220121000101 in words is "one hundred trillion, two hundred twenty billion, one hundred twenty-one million, one hundred one", and thus it is an aban number.