22021310293 has 2 divisors, whose sum is σ = 22021310294. Its totient is φ = 22021310292.

The previous prime is 22021310261. The next prime is 22021310351. The reversal of 22021310293 is 39201312022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14899131844 + 7122178449 = 122062^2 + 84393^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021310293 - 2⁵ = 22021310261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021310203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010655146 + 11010655147.

It is an arithmetic number, because the mean of its divisors is an integer number (11010655147).

Almost surely, 2^22021310293 is an apocalyptic number.

It is an amenable number.

22021310293 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021310293 is an equidigital number, since it uses as much as digits as its factorization.

22021310293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 22021310293 in words is "twenty-two billion, twenty-one million, three hundred ten thousand, two hundred ninety-three".