20210201100001 has 4 divisors (see below), whose sum is σ = 22047492109104. Its totient is φ = 18372910090900.

The previous prime is 20210201099983. The next prime is 20210201100013. The reversal of 20210201100001 is 10000110201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20210201100001 - 2⁷ = 20210201099873 is a prime.

It is a super-3 number, since 3×20210201100001³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20210201130001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918645504535 + ... + 918645504556.

It is an arithmetic number, because the mean of its divisors is an integer number (5511873027276).

Almost surely, 2^{20210201100001} is an apocalyptic number.

It is an amenable number.

20210201100001 is a deficient number, since it is larger than the sum of its proper divisors (1837291009103).

20210201100001 is a wasteful number, since it uses less digits than its factorization.

20210201100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837291009102.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20210201100001 its reverse (10000110201202), we get a palindrome (30210311301203).

The spelling of 20210201100001 in words is "twenty trillion, two hundred ten billion, two hundred one million, one hundred thousand, one".