220101001001 has 8 divisors (see below), whose sum is σ = 251647239360. Its totient is φ = 188580572208.

The previous prime is 220101000983. The next prime is 220101001027. The reversal of 220101001001 is 100100101022.

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

It is a de Polignac number, because none of the positive numbers 2^k-220101001001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220101001001.

It is not an unprimeable number, because it can be changed into a prime (220101001031) 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, 6434111 + ... + 6468228.

It is an arithmetic number, because the mean of its divisors is an integer number (31455904920).

Almost surely, 2^220101001001 is an apocalyptic number.

It is an amenable number.

220101001001 is a deficient number, since it is larger than the sum of its proper divisors (31546238359).

220101001001 is a wasteful number, since it uses less digits than its factorization.

220101001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904783.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 220101001001 its reverse (100100101022), we get a palindrome (320201102023).

The spelling of 220101001001 in words is "two hundred twenty billion, one hundred one million, one thousand, one".