2210021393 has 2 divisors, whose sum is σ = 2210021394. Its totient is φ = 2210021392.

The previous prime is 2210021339. The next prime is 2210021431. The reversal of 2210021393 is 3931200122.

Together with previous prime (2210021339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1823033809 + 386987584 = 42697^2 + 19672^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210021393 - 2²² = 2205827089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210521393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105010696 + 1105010697.

It is an arithmetic number, because the mean of its divisors is an integer number (1105010697).

Almost surely, 2^2210021393 is an apocalyptic number.

It is an amenable number.

2210021393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210021393 is an equidigital number, since it uses as much as digits as its factorization.

2210021393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2210021393 is about 47010.8646272327. The cubic root of 2210021393 is about 1302.5632646722.

The spelling of 2210021393 in words is "two billion, two hundred ten million, twenty-one thousand, three hundred ninety-three".