10221131099 has 2 divisors, whose sum is σ = 10221131100. Its totient is φ = 10221131098.

The previous prime is 10221131077. The next prime is 10221131101. The reversal of 10221131099 is 99013112201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221131099 - 2¹⁶ = 10221065563 is a prime.

Together with 10221131101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10221131009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110565549 + 5110565550.

It is an arithmetic number, because the mean of its divisors is an integer number (5110565550).

Almost surely, 2^10221131099 is an apocalyptic number.

10221131099 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221131099 is an equidigital number, since it uses as much as digits as its factorization.

10221131099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 10221131099 in words is "ten billion, two hundred twenty-one million, one hundred thirty-one thousand, ninety-nine".