20201201000001 has 12 divisors (see below), whose sum is σ = 33348014349312. Its totient is φ = 11543543428536.

The previous prime is 20201200999957. The next prime is 20201201000017. The reversal of 20201201000001 is 10000010210202.

It is not a de Polignac number, because 20201201000001 - 2⁹ = 20201200999489 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 (20201201000081) 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, 160326992001 + ... + 160326992126.

It is an arithmetic number, because the mean of its divisors is an integer number (2779001195776).

Almost surely, 2^{20201201000001} is an apocalyptic number.

20201201000001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20201201000001 is a deficient number, since it is larger than the sum of its proper divisors (13146813349311).

20201201000001 is a wasteful number, since it uses less digits than its factorization.

20201201000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320653984140 (or 320653984137 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20201201000001 its reverse (10000010210202), we get a palindrome (30201211210203).

The spelling of 20201201000001 in words is "twenty trillion, two hundred one billion, two hundred one million, one", and thus it is an aban number.