20201222001 has 8 divisors (see below), whose sum is σ = 27662934784. Its totient is φ = 13103495280.

The previous prime is 20201221993. The next prime is 20201222017. The reversal of 20201222001 is 10022210202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20201222001 - 2³ = 20201221993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90996385 + ... + 90996606.

It is an arithmetic number, because the mean of its divisors is an integer number (3457866848).

Almost surely, 2^20201222001 is an apocalyptic number.

It is an amenable number.

20201222001 is a deficient number, since it is larger than the sum of its proper divisors (7461712783).

20201222001 is a wasteful number, since it uses less digits than its factorization.

20201222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181993031.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201222001 its reverse (10022210202), we get a palindrome (30223432203).

The spelling of 20201222001 in words is "twenty billion, two hundred one million, two hundred twenty-two thousand, one".