20220011221999 has 2 divisors, whose sum is σ = 20220011222000. Its totient is φ = 20220011221998.

The previous prime is 20220011221973. The next prime is 20220011222039. The reversal of 20220011221999 is 99912211002202.

It is an a-pointer prime, because the next prime (20220011222039) can be obtained adding 20220011221999 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20220011221999 - 2⁵ = 20220011221967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220011221919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110005610999 + 10110005611000.

It is an arithmetic number, because the mean of its divisors is an integer number (10110005611000).

Almost surely, 2^{20220011221999} is an apocalyptic number.

20220011221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220011221999 is an equidigital number, since it uses as much as digits as its factorization.

20220011221999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 20220011221999 in words is "twenty trillion, two hundred twenty billion, eleven million, two hundred twenty-one thousand, nine hundred ninety-nine".