10221101999 has 2 divisors, whose sum is σ = 10221102000. Its totient is φ = 10221101998.

The previous prime is 10221101983. The next prime is 10221102007. The reversal of 10221101999 is 99910112201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221101999 - 2⁴ = 10221101983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221101959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110550999 + 5110551000.

It is an arithmetic number, because the mean of its divisors is an integer number (5110551000).

Almost surely, 2^10221101999 is an apocalyptic number.

10221101999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221101999 is an equidigital number, since it uses as much as digits as its factorization.

10221101999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 10221101999 in words is "ten billion, two hundred twenty-one million, one hundred one thousand, nine hundred ninety-nine".