2001122110222 has 8 divisors (see below), whose sum is σ = 3003955450272. Its totient is φ = 999803626800.

The previous prime is 2001122110189. The next prime is 2001122110223. The reversal of 2001122110222 is 2220112211002.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2001122110196 and 2001122110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001122110223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378710854 + ... + 378716137.

It is an arithmetic number, because the mean of its divisors is an integer number (375494431284).

Almost surely, 2^{2001122110222} is an apocalyptic number.

2001122110222 is a deficient number, since it is larger than the sum of its proper divisors (1002833340050).

2001122110222 is a wasteful number, since it uses less digits than its factorization.

2001122110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757428314.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2001122110222 its reverse (2220112211002), we get a palindrome (4221234321224).

The spelling of 2001122110222 in words is "two trillion, one billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-two".