2021111041097 has 2 divisors, whose sum is σ = 2021111041098. Its totient is φ = 2021111041096.

The previous prime is 2021111041087. The next prime is 2021111041109. The reversal of 2021111041097 is 7901401111202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1135185833401 + 885925207696 = 1065451^2 + 941236^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021111041097 - 2²⁰ = 2021109992521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021111041087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010555520548 + 1010555520549.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555520549).

Almost surely, 2^{2021111041097} is an apocalyptic number.

It is an amenable number.

2021111041097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021111041097 is an equidigital number, since it uses as much as digits as its factorization.

2021111041097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

Adding to 2021111041097 its reverse (7901401111202), we get a palindrome (9922512152299).

The spelling of 2021111041097 in words is "two trillion, twenty-one billion, one hundred eleven million, forty-one thousand, ninety-seven".