2001100001222 has 32 divisors (see below), whose sum is σ = 3548855531520. Its totient is φ = 828016469280.

The previous prime is 2001100001203. The next prime is 2001100001273. The reversal of 2001100001222 is 2221000011002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20377283 + ... + 20475249.

It is an arithmetic number, because the mean of its divisors is an integer number (110901735360).

Almost surely, 2^{2001100001222} is an apocalyptic number.

2001100001222 is a deficient number, since it is larger than the sum of its proper divisors (1547755530298).

2001100001222 is a wasteful number, since it uses less digits than its factorization.

2001100001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148316.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001100001222 its reverse (2221000011002), we get a palindrome (4222100012224).

The spelling of 2001100001222 in words is "two trillion, one billion, one hundred million, one thousand, two hundred twenty-two".