2001112221010 has 64 divisors (see below), whose sum is σ = 4259542360320. Its totient is φ = 662278821120.

The previous prime is 2001112221007. The next prime is 2001112221019. The reversal of 2001112221010 is 101222111002.

It is not an unprimeable number, because it can be changed into a prime (2001112221019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8534157 + ... + 8765503.

It is an arithmetic number, because the mean of its divisors is an integer number (66555349380).

Almost surely, 2^{2001112221010} is an apocalyptic number.

2001112221010 is an abundant number, since it is smaller than the sum of its proper divisors (2258430139310).

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

2001112221010 is a wasteful number, since it uses less digits than its factorization.

2001112221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235651.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2001112221010 its reverse (101222111002), we get a palindrome (2102334332012).

The spelling of 2001112221010 in words is "two trillion, one billion, one hundred twelve million, two hundred twenty-one thousand, ten".