100220100110021 has 2 divisors, whose sum is σ = 100220100110022. Its totient is φ = 100220100110020.

The previous prime is 100220100109981. The next prime is 100220100110033. The reversal of 100220100110021 is 120011001022001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96744653404996 + 3475446705025 = 9835886^2 + 1864255^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220100110021 - 2³⁸ = 99945222203077 is a prime.

It is a super-3 number, since 3×100220100110021³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100220100109984 and 100220100110011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220100110621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110050055010 + 50110050055011.

It is an arithmetic number, because the mean of its divisors is an integer number (50110050055011).

Almost surely, 2^{100220100110021} is an apocalyptic number.

It is an amenable number.

100220100110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220100110021 is an equidigital number, since it uses as much as digits as its factorization.

100220100110021 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 100220100110021 its reverse (120011001022001), we get a palindrome (220231101132022).

The spelling of 100220100110021 in words is "one hundred trillion, two hundred twenty billion, one hundred million, one hundred ten thousand, twenty-one".