10021221323 has 2 divisors, whose sum is σ = 10021221324. Its totient is φ = 10021221322.

The previous prime is 10021221317. The next prime is 10021221361. The reversal of 10021221323 is 32312212001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10021221323 - 2⁴ = 10021221307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10021221823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010610661 + 5010610662.

It is an arithmetic number, because the mean of its divisors is an integer number (5010610662).

Almost surely, 2^10021221323 is an apocalyptic number.

10021221323 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021221323 is an equidigital number, since it uses as much as digits as its factorization.

10021221323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10021221323 its reverse (32312212001), we get a palindrome (42333433324).

The spelling of 10021221323 in words is "ten billion, twenty-one million, two hundred twenty-one thousand, three hundred twenty-three".