100220021001161 has 2 divisors, whose sum is σ = 100220021001162. Its totient is φ = 100220021001160.

The previous prime is 100220021001157. The next prime is 100220021001193. The reversal of 100220021001161 is 161100120022001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100118655176761 + 101365824400 = 10005931^2 + 318380^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220021001161 - 2² = 100220021001157 is a prime.

It is not a weakly prime, because it can be changed into another prime (100220021021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110010500580 + 50110010500581.

It is an arithmetic number, because the mean of its divisors is an integer number (50110010500581).

Almost surely, 2^{100220021001161} is an apocalyptic number.

It is an amenable number.

100220021001161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220021001161 is an equidigital number, since it uses as much as digits as its factorization.

100220021001161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 100220021001161 its reverse (161100120022001), we get a palindrome (261320141023162).

The spelling of 100220021001161 in words is "one hundred trillion, two hundred twenty billion, twenty-one million, one thousand, one hundred sixty-one".