21002222099107 has 2 divisors, whose sum is σ = 21002222099108. Its totient is φ = 21002222099106.

The previous prime is 21002222099087. The next prime is 21002222099219. The reversal of 21002222099107 is 70199022220012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21002222099107 is a prime.

It is not a weakly prime, because it can be changed into another prime (21002222099407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501111049553 + 10501111049554.

It is an arithmetic number, because the mean of its divisors is an integer number (10501111049554).

Almost surely, 2^{21002222099107} is an apocalyptic number.

21002222099107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002222099107 is an equidigital number, since it uses as much as digits as its factorization.

21002222099107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 21002222099107 in words is "twenty-one trillion, two billion, two hundred twenty-two million, ninety-nine thousand, one hundred seven".