2001112261522 has 32 divisors (see below), whose sum is σ = 3359830155264. Its totient is φ = 886022096400.

The previous prime is 2001112261493. The next prime is 2001112261559. The reversal of 2001112261522 is 2251622111002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2534754 + ... + 3229117.

It is an arithmetic number, because the mean of its divisors is an integer number (104994692352).

Almost surely, 2^{2001112261522} is an apocalyptic number.

2001112261522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001112261522 is a deficient number, since it is larger than the sum of its proper divisors (1358717893742).

2001112261522 is a wasteful number, since it uses less digits than its factorization.

2001112261522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764294.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 2001112261522 its reverse (2251622111002), we get a palindrome (4252734372524).

The spelling of 2001112261522 in words is "two trillion, one billion, one hundred twelve million, two hundred sixty-one thousand, five hundred twenty-two".