2100220220101 has 2 divisors, whose sum is σ = 2100220220102. Its totient is φ = 2100220220100.

The previous prime is 2100220220093. The next prime is 2100220220107. The reversal of 2100220220101 is 1010220220012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1526336702500 + 573883517601 = 1235450^2 + 757551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100220220101 - 2³ = 2100220220093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100220220107) 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 as a sum of consecutive naturals, namely, 1050110110050 + 1050110110051.

It is an arithmetic number, because the mean of its divisors is an integer number (1050110110051).

Almost surely, 2^{2100220220101} is an apocalyptic number.

It is an amenable number.

2100220220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100220220101 is an equidigital number, since it uses as much as digits as its factorization.

2100220220101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100220220101 its reverse (1010220220012), we get a palindrome (3110440440113).

The spelling of 2100220220101 in words is "two trillion, one hundred billion, two hundred twenty million, two hundred twenty thousand, one hundred one".