2001121120010 has 16 divisors (see below), whose sum is σ = 3606776309736. Its totient is φ = 799391049408.

The previous prime is 2001121120007. The next prime is 2001121120069. The reversal of 2001121120010 is 100211211002.

It can be written as a sum of positive squares in 4 ways, for example, as 1727145295681 + 273975824329 = 1314209^2 + 523427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001121119973 and 2001121120000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132166877 + ... + 132182016.

Almost surely, 2^{2001121120010} is an apocalyptic number.

2001121120010 is a deficient number, since it is larger than the sum of its proper divisors (1605655189726).

2001121120010 is a wasteful number, since it uses less digits than its factorization.

2001121120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264349657.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001121120010 its reverse (100211211002), we get a palindrome (2101332331012).

The spelling of 2001121120010 in words is "two trillion, one billion, one hundred twenty-one million, one hundred twenty thousand, ten".