2223220020997 has 2 divisors, whose sum is σ = 2223220020998. Its totient is φ = 2223220020996.

The previous prime is 2223220020953. The next prime is 2223220021027. The reversal of 2223220020997 is 7990200223222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2223218174116 + 1846881 = 1491046^2 + 1359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2223220020997 is a prime.

It is a super-2 number, since 2×2223220020997² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223220020397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111610010498 + 1111610010499.

It is an arithmetic number, because the mean of its divisors is an integer number (1111610010499).

Almost surely, 2^{2223220020997} is an apocalyptic number.

It is an amenable number.

2223220020997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223220020997 is an equidigital number, since it uses as much as digits as its factorization.

2223220020997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 2223220020997 in words is "two trillion, two hundred twenty-three billion, two hundred twenty million, twenty thousand, nine hundred ninety-seven".