2001000121010 has 64 divisors (see below), whose sum is σ = 3951110016000. Its totient is φ = 723589732800.

The previous prime is 2001000121009. The next prime is 2001000121013. The reversal of 2001000121010 is 101210001002.

It is not an unprimeable number, because it can be changed into a prime (2001000121013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42245921 + ... + 42293259.

It is an arithmetic number, because the mean of its divisors is an integer number (61736094000).

Almost surely, 2^{2001000121010} is an apocalyptic number.

2001000121010 is a deficient number, since it is larger than the sum of its proper divisors (1950109894990).

2001000121010 is a wasteful number, since it uses less digits than its factorization.

2001000121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49487.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001000121010 its reverse (101210001002), we get a palindrome (2102210122012).

The spelling of 2001000121010 in words is "two trillion, one billion, one hundred twenty-one thousand, ten".