2001121122193 has 8 divisors (see below), whose sum is σ = 2013668691840. Its totient is φ = 1988611518960.

The previous prime is 2001121122157. The next prime is 2001121122197. The reversal of 2001121122193 is 3912211211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001121122193 - 2¹³ = 2001121114001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001121122197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9385855 + ... + 9596692.

It is an arithmetic number, because the mean of its divisors is an integer number (251708586480).

Almost surely, 2^{2001121122193} is an apocalyptic number.

It is an amenable number.

2001121122193 is a deficient number, since it is larger than the sum of its proper divisors (12547569647).

2001121122193 is a wasteful number, since it uses less digits than its factorization.

2001121122193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18983207.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 2001121122193 its reverse (3912211211002), we get a palindrome (5913332333195).

The spelling of 2001121122193 in words is "two trillion, one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred ninety-three".