2001123333222 has 64 divisors (see below), whose sum is σ = 4498343410176. Its totient is φ = 588849972480.

The previous prime is 2001123333221. The next prime is 2001123333227. The reversal of 2001123333222 is 2223333211002.

It is a junction number, because it is equal to n+sod(n) for n = 2001123333192 and 2001123333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001123333221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9821778 + ... + 10023450.

It is an arithmetic number, because the mean of its divisors is an integer number (70286615784).

Almost surely, 2^{2001123333222} is an apocalyptic number.

2001123333222 is an abundant number, since it is smaller than the sum of its proper divisors (2497220076954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001123333222 is a wasteful number, since it uses less digits than its factorization.

2001123333222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207245.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 2001123333222 its reverse (2223333211002), we get a palindrome (4224456544224).

The spelling of 2001123333222 in words is "two trillion, one billion, one hundred twenty-three million, three hundred thirty-three thousand, two hundred twenty-two".