2001121111202 has 8 divisors (see below), whose sum is σ = 3012363808812. Its totient is φ = 996999841600.

The previous prime is 2001121111189. The next prime is 2001121111211. The reversal of 2001121111202 is 2021111211002.

It can be written as a sum of positive squares in 2 ways, for example, as 1986072936961 + 15048174241 = 1409281^2 + 122671^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780356299 + ... + 1780357422.

Almost surely, 2^{2001121111202} is an apocalyptic number.

2001121111202 is a deficient number, since it is larger than the sum of its proper divisors (1011242697610).

2001121111202 is a wasteful number, since it uses less digits than its factorization.

2001121111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560714004.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2001121111202 its reverse (2021111211002), we get a palindrome (4022232322204).

The spelling of 2001121111202 in words is "two trillion, one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred two".