10221434420291 has 2 divisors, whose sum is σ = 10221434420292. Its totient is φ = 10221434420290.

The previous prime is 10221434420261. The next prime is 10221434420359. The reversal of 10221434420291 is 19202443412201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221434420291 - 2¹⁴ = 10221434403907 is a prime.

It is a super-2 number, since 2×10221434420291² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10221434420221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110717210145 + 5110717210146.

It is an arithmetic number, because the mean of its divisors is an integer number (5110717210146).

Almost surely, 2^{10221434420291} is an apocalyptic number.

10221434420291 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221434420291 is an equidigital number, since it uses as much as digits as its factorization.

10221434420291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 10221434420291 its reverse (19202443412201), we get a palindrome (29423877832492).

The spelling of 10221434420291 in words is "ten trillion, two hundred twenty-one billion, four hundred thirty-four million, four hundred twenty thousand, two hundred ninety-one".