2220100001001 has 8 divisors (see below), whose sum is σ = 3289037038560. Its totient is φ = 1480066667316.

The previous prime is 2220100000997. The next prime is 2220100001027. The reversal of 2220100001001 is 1001000010222.

It is not a de Polignac number, because 2220100001001 - 2² = 2220100000997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2220100001071) 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, 41112962955 + ... + 41112963008.

It is an arithmetic number, because the mean of its divisors is an integer number (411129629820).

Almost surely, 2^{2220100001001} is an apocalyptic number.

It is an amenable number.

2220100001001 is a deficient number, since it is larger than the sum of its proper divisors (1068937037559).

2220100001001 is an equidigital number, since it uses as much as digits as its factorization.

2220100001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82225925972 (or 82225925966 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2220100001001 its reverse (1001000010222), we get a palindrome (3221100011223).

The spelling of 2220100001001 in words is "two trillion, two hundred twenty billion, one hundred million, one thousand, one".