2001010022201 has 4 divisors (see below), whose sum is σ = 2004836045712. Its totient is φ = 1997183998692.

The previous prime is 2001010022171. The next prime is 2001010022251. The reversal of 2001010022201 is 1022200101002.

It is a happy number.

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 2001010022201 - 2¹⁴ = 2001010005817 is a prime.

It is a super-2 number, since 2×2001010022201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001010022251) 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, 1913010971 + ... + 1913012016.

It is an arithmetic number, because the mean of its divisors is an integer number (501209011428).

Almost surely, 2^{2001010022201} is an apocalyptic number.

It is an amenable number.

2001010022201 is a deficient number, since it is larger than the sum of its proper divisors (3826023511).

2001010022201 is an equidigital number, since it uses as much as digits as its factorization.

2001010022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826023510.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001010022201 its reverse (1022200101002), we get a palindrome (3023210123203).

The spelling of 2001010022201 in words is "two trillion, one billion, ten million, twenty-two thousand, two hundred one".