22020000020001 has 12 divisors (see below), whose sum is σ = 31807121591700. Its totient is φ = 14679790061280.

The previous prime is 22020000019973. The next prime is 22020000020017. The reversal of 22020000020001 is 10002000002022.

It can be written as a sum of positive squares in 2 ways, for example, as 1918227770001 + 20101772250000 = 1385001^2 + 4483500^2 .

It is not a de Polignac number, because 22020000020001 - 2⁶ = 22020000019937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22020000020071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16830426 + ... + 18091523.

It is an arithmetic number, because the mean of its divisors is an integer number (2650593465975).

Almost surely, 2^{22020000020001} is an apocalyptic number.

It is an amenable number.

22020000020001 is a deficient number, since it is larger than the sum of its proper divisors (9787121571699).

22020000020001 is a wasteful number, since it uses less digits than its factorization.

22020000020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34992016 (or 34992013 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22020000020001 its reverse (10002000002022), we get a palindrome (32022000022023).

The spelling of 22020000020001 in words is "twenty-two trillion, twenty billion, twenty thousand, one".