20000022020001 has 12 divisors (see below), whose sum is σ = 28909136893780. Its totient is φ = 13324017460320.

The previous prime is 20000022019997. The next prime is 20000022020003. The reversal of 20000022020001 is 10002022000002.

It can be written as a sum of positive squares in 2 ways, for example, as 343922429601 + 19656099590400 = 586449^2 + 4433520^2 .

It is not a de Polignac number, because 20000022020001 - 2² = 20000022019997 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000022020003) 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, 777532510 + ... + 777558231.

Almost surely, 2^{20000022020001} is an apocalyptic number.

It is an amenable number.

20000022020001 is a deficient number, since it is larger than the sum of its proper divisors (8909114873779).

20000022020001 is a wasteful number, since it uses less digits than its factorization.

20000022020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555092176 (or 1555092173 counting only the distinct ones).

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

Adding to 20000022020001 its reverse (10002022000002), we get a palindrome (30002044020003).

The spelling of 20000022020001 in words is "twenty trillion, twenty-two million, twenty thousand, one".