20122699 has 2 divisors, whose sum is σ = 20122700. Its totient is φ = 20122698.

The previous prime is 20122693. The next prime is 20122703. The reversal of 20122699 is 99622102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122699 - 2¹¹ = 20120651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122699.

It is not a weakly prime, because it can be changed into another prime (20122693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061349 + 10061350.

It is an arithmetic number, because the mean of its divisors is an integer number (10061350).

Almost surely, 2^20122699 is an apocalyptic number.

20122699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122699 is an equidigital number, since it uses as much as digits as its factorization.

20122699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 20122699 is about 4485.8331444671. The cubic root of 20122699 is about 271.9957242335.

The spelling of 20122699 in words is "twenty million, one hundred twenty-two thousand, six hundred ninety-nine".