20201001122001 has 16 divisors (see below), whose sum is σ = 30855944448000. Its totient is φ = 11515879257168.

The previous prime is 20201001121997. The next prime is 20201001122041. The reversal of 20201001122001 is 10022110010202.

It is not a de Polignac number, because 20201001122001 - 2² = 20201001121997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201001122041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147905801 + ... + 1147923398.

It is an arithmetic number, because the mean of its divisors is an integer number (1928496528000).

Almost surely, 2^{20201001122001} is an apocalyptic number.

20201001122001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20201001122001 is a deficient number, since it is larger than the sum of its proper divisors (10654943325999).

20201001122001 is a wasteful number, since it uses less digits than its factorization.

20201001122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295829628.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20201001122001 its reverse (10022110010202), we get a palindrome (30223111132203).

The spelling of 20201001122001 in words is "twenty trillion, two hundred one billion, one million, one hundred twenty-two thousand, one".