22020220999 has 16 divisors (see below), whose sum is σ = 26619881472. Its totient is φ = 17806523328.

The previous prime is 22020220997. The next prime is 22020221029. The reversal of 22020220999 is 99902202022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22020220999 - 2¹ = 22020220997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020220997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925039 + ... + 948544.

It is an arithmetic number, because the mean of its divisors is an integer number (1663742592).

Almost surely, 2^22020220999 is an apocalyptic number.

22020220999 is a deficient number, since it is larger than the sum of its proper divisors (4599660473).

22020220999 is a wasteful number, since it uses less digits than its factorization.

22020220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873686.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 22020220999 in words is "twenty-two billion, twenty million, two hundred twenty thousand, nine hundred ninety-nine".