2201001221001 has 32 divisors (see below), whose sum is σ = 3276618808320. Its totient is φ = 1302635880000.

The previous prime is 2201001220981. The next prime is 2201001221009. The reversal of 2201001221001 is 1001221001022.

It is not a de Polignac number, because 2201001221001 - 2¹⁸ = 2201000958857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2201001221009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6473751 + ... + 6805251.

It is an arithmetic number, because the mean of its divisors is an integer number (102394337760).

Almost surely, 2^{2201001221001} is an apocalyptic number.

It is an amenable number.

2201001221001 is a deficient number, since it is larger than the sum of its proper divisors (1075617587319).

2201001221001 is a wasteful number, since it uses less digits than its factorization.

2201001221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336237.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2201001221001 its reverse (1001221001022), we get a palindrome (3202222222023).

The spelling of 2201001221001 in words is "two trillion, two hundred one billion, one million, two hundred twenty-one thousand, one".