2001110222222 has 8 divisors (see below), whose sum is σ = 3001671454656. Its totient is φ = 1000553070672.

The previous prime is 2001110222143. The next prime is 2001110222303. The reversal of 2001110222222 is 2222220111002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2001110222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028498 + ... + 2249450.

It is an arithmetic number, because the mean of its divisors is an integer number (375208931832).

Almost surely, 2^{2001110222222} is an apocalyptic number.

2001110222222 is a deficient number, since it is larger than the sum of its proper divisors (1000561232434).

2001110222222 is a wasteful number, since it uses less digits than its factorization.

2001110222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040442.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2001110222222 its reverse (2222220111002), we get a palindrome (4223330333224).

The spelling of 2001110222222 in words is "two trillion, one billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-two".