10221301243 has 2 divisors, whose sum is σ = 10221301244. Its totient is φ = 10221301242.

The previous prime is 10221301229. The next prime is 10221301261. The reversal of 10221301243 is 34210312201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221301243 - 2¹³ = 10221293051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221301243.

It is not a weakly prime, because it can be changed into another prime (10221301943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110650621 + 5110650622.

It is an arithmetic number, because the mean of its divisors is an integer number (5110650622).

Almost surely, 2^10221301243 is an apocalyptic number.

10221301243 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221301243 is an equidigital number, since it uses as much as digits as its factorization.

10221301243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10221301243 its reverse (34210312201), we get a palindrome (44431613444).

The spelling of 10221301243 in words is "ten billion, two hundred twenty-one million, three hundred one thousand, two hundred forty-three".