10929822821 has 2 divisors, whose sum is σ = 10929822822. Its totient is φ = 10929822820.

The previous prime is 10929822817. The next prime is 10929822823. The reversal of 10929822821 is 12822892901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10812880225 + 116942596 = 103985^2 + 10814^2 .

It is a cyclic number.

It is not a de Polignac number, because 10929822821 - 2² = 10929822817 is a prime.

It is a super-2 number, since 2×10929822821² (a number of 21 digits) contains 22 as substring.

Together with 10929822823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10929822823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5464911410 + 5464911411.

It is an arithmetic number, because the mean of its divisors is an integer number (5464911411).

Almost surely, 2^10929822821 is an apocalyptic number.

It is an amenable number.

10929822821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10929822821 is an equidigital number, since it uses as much as digits as its factorization.

10929822821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 10929822821 in words is "ten billion, nine hundred twenty-nine million, eight hundred twenty-two thousand, eight hundred twenty-one".