2001220101192 has 32 divisors (see below), whose sum is σ = 5387900273280. Its totient is φ = 615760031040.

The previous prime is 2001220101151. The next prime is 2001220101217. The reversal of 2001220101192 is 2911010221002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3207083184 + ... + 3207083807.

It is an arithmetic number, because the mean of its divisors is an integer number (168371883540).

Almost surely, 2^{2001220101192} is an apocalyptic number.

It is an amenable number.

2001220101192 is an abundant number, since it is smaller than the sum of its proper divisors (3386680172088).

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

2001220101192 is a wasteful number, since it uses less digits than its factorization.

2001220101192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414167013 (or 6414167009 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 2001220101192 its reverse (2911010221002), we get a palindrome (4912230322194).

The spelling of 2001220101192 in words is "two trillion, one billion, two hundred twenty million, one hundred one thousand, one hundred ninety-two".