100011200220221 has 4 divisors (see below), whose sum is σ = 101134921571100. Its totient is φ = 98887478869344.

The previous prime is 100011200220179. The next prime is 100011200220257. The reversal of 100011200220221 is 122022002110001.

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 54476371017721 + 45534829202500 = 7380811^2 + 6747950^2 .

It is a cyclic number.

It is not a de Polignac number, because 100011200220221 - 2⁶ = 100011200220157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011200220196 and 100011200220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011200220821) 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, 561860675306 + ... + 561860675483.

It is an arithmetic number, because the mean of its divisors is an integer number (25283730392775).

Almost surely, 2^{100011200220221} is an apocalyptic number.

It is an amenable number.

100011200220221 is a deficient number, since it is larger than the sum of its proper divisors (1123721350879).

100011200220221 is an equidigital number, since it uses as much as digits as its factorization.

100011200220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123721350878.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100011200220221 its reverse (122022002110001), we get a palindrome (222033202330222).

The spelling of 100011200220221 in words is "one hundred trillion, eleven billion, two hundred million, two hundred twenty thousand, two hundred twenty-one".