2001020212201 has 8 divisors (see below), whose sum is σ = 2016809017344. Its totient is φ = 1985231918880.

The previous prime is 2001020212171. The next prime is 2001020212207. The reversal of 2001020212201 is 1022120201002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2001020212201 - 2¹⁹ = 2001019687913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001020212207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13054461 + ... + 13206853.

It is an arithmetic number, because the mean of its divisors is an integer number (252101127168).

Almost surely, 2^{2001020212201} is an apocalyptic number.

It is an amenable number.

2001020212201 is a deficient number, since it is larger than the sum of its proper divisors (15788805143).

2001020212201 is a wasteful number, since it uses less digits than its factorization.

2001020212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255911.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001020212201 its reverse (1022120201002), we get a palindrome (3023140413203).

The spelling of 2001020212201 in words is "two trillion, one billion, twenty million, two hundred twelve thousand, two hundred one".