221310020013293 has 2 divisors, whose sum is σ = 221310020013294. Its totient is φ = 221310020013292.

The previous prime is 221310020013233. The next prime is 221310020013317. The reversal of 221310020013293 is 392310020013122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215429652060484 + 5880367952809 = 14677522^2 + 2424947^2 .

It is a cyclic number.

It is not a de Polignac number, because 221310020013293 - 2¹⁰ = 221310020012269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221310020013233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655010006646 + 110655010006647.

It is an arithmetic number, because the mean of its divisors is an integer number (110655010006647).

Almost surely, 2^{221310020013293} is an apocalyptic number.

It is an amenable number.

221310020013293 is a deficient number, since it is larger than the sum of its proper divisors (1).

221310020013293 is an equidigital number, since it uses as much as digits as its factorization.

221310020013293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 221310020013293 in words is "two hundred twenty-one trillion, three hundred ten billion, twenty million, thirteen thousand, two hundred ninety-three".