2001002220111 has 8 divisors (see below), whose sum is σ = 2689010857984. Its totient is φ = 1323497531160.

The previous prime is 2001002220083. The next prime is 2001002220169. The reversal of 2001002220111 is 1110222001002.

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

It is not a de Polignac number, because 2001002220111 - 2⁵ = 2001002220079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001002220911) 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, 2625986785 + ... + 2625987546.

It is an arithmetic number, because the mean of its divisors is an integer number (336126357248).

Almost surely, 2^{2001002220111} is an apocalyptic number.

2001002220111 is a deficient number, since it is larger than the sum of its proper divisors (688008637873).

2001002220111 is a wasteful number, since it uses less digits than its factorization.

2001002220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251974461.

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

Adding to 2001002220111 its reverse (1110222001002), we get a palindrome (3111224221113).

The spelling of 2001002220111 in words is "two trillion, one billion, two million, two hundred twenty thousand, one hundred eleven".