2220021889097 has 2 divisors, whose sum is σ = 2220021889098. Its totient is φ = 2220021889096.

The previous prime is 2220021889073. The next prime is 2220021889109. The reversal of 2220021889097 is 7909881200222.

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., 2162852600896 + 57169288201 = 1470664^2 + 239101^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220021889097 - 2²² = 2220017694793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220021889697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110010944548 + 1110010944549.

It is an arithmetic number, because the mean of its divisors is an integer number (1110010944549).

Almost surely, 2^{2220021889097} is an apocalyptic number.

It is an amenable number.

2220021889097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220021889097 is an equidigital number, since it uses as much as digits as its factorization.

2220021889097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 2220021889097 in words is "two trillion, two hundred twenty billion, twenty-one million, eight hundred eighty-nine thousand, ninety-seven".