2001012221201 has 8 divisors (see below), whose sum is σ = 2286880742784. Its totient is φ = 1715146107840.

The previous prime is 2001012221183. The next prime is 2001012221249. The reversal of 2001012221201 is 1021222101002.

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 2001012221201 - 2³⁰ = 1999938479377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001012221251) 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, 1837481 + ... + 2716313.

It is an arithmetic number, because the mean of its divisors is an integer number (285860092848).

Almost surely, 2^{2001012221201} is an apocalyptic number.

It is an amenable number.

2001012221201 is a deficient number, since it is larger than the sum of its proper divisors (285868521583).

2001012221201 is an equidigital number, since it uses as much as digits as its factorization.

2001012221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204111.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001012221201 its reverse (1021222101002), we get a palindrome (3022234322203).

The spelling of 2001012221201 in words is "two trillion, one billion, twelve million, two hundred twenty-one thousand, two hundred one".