2001100222233 has 48 divisors (see below), whose sum is σ = 3308796271872. Its totient is φ = 1141620480000.

The previous prime is 2001100222157. The next prime is 2001100222249. The reversal of 2001100222233 is 3322220011002.

2001100222233 is a `hidden beast` number, since 200 + 1 + 10 + 0 + 222 + 233 = 666.

It is not a de Polignac number, because 2001100222233 - 2⁸ = 2001100221977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001100222333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128259633 + ... + 128275233.

It is an arithmetic number, because the mean of its divisors is an integer number (68933255664).

Almost surely, 2^{2001100222233} is an apocalyptic number.

It is an amenable number.

2001100222233 is a deficient number, since it is larger than the sum of its proper divisors (1307696049639).

2001100222233 is a wasteful number, since it uses less digits than its factorization.

2001100222233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18806 (or 18803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2001100222233 its reverse (3322220011002), we get a palindrome (5323320233235).

The spelling of 2001100222233 in words is "two trillion, one billion, one hundred million, two hundred twenty-two thousand, two hundred thirty-three".